Tuesday, August 27, 2019

Blood Groups

Blood Groups


There are four main blood groups  A, B, AB and O. Your blood group is inherited from genes passed on by your parents. The two most important blood group systems for transfusion are ABO and Rhesus (Rh).

The ABO group system gives the letter part of your blood type and Rhesus system gives the positive or negative part. Blood is made up of red blood cells, white blood cells and platelets in a liquid called plasma. Your blood group is identified by antibodies and antigens in the blood.

Antibodies are proteins found in plasma. They're part of your body's natural defences. They recognise foreign substances, such as germs, and alert your immune system, which destroys them.

Antigens are protein molecules found on the surface of red blood cells.



● Blood Group A  

A antigens on the red blood cells with anti-B antibodies in the plasma.


● Blood Group B   

B antigens with anti-A antibodies in the plasma.


● Blood Group O  

No antigens, but both anti-A and anti-B antibodies in the plasma.


● Blood Group AB  

Both A and B antigens, but no antibodies

Monday, August 26, 2019

Predators size compared to humans hand

Predators size compared to humans hand


(All photos are collected from google)

● Polar Bear



● Harpy Eagle



● Lion



● Gorilla



● Tiger



● Grizzly Bear



● Black Bear





Shark Poaching

Shark Poaching


There is no scientific evidence that shark fins can be used to treat any medical condition. Sharks biomagnify toxins, so eating shark meat may raise the risk of dementia and heavy metal poisoning such as mercury poisoning.

Shark finning is the act of removing fins from sharks and discarding the rest of the shark. In legal contexts the use of the term "shark finning" can refer specifically to this practice of removing the fins from live sharks and discarding the carcass while still at sea. For these legal purposes the removal of fins on land during catch processing is not necessarily considered to be shark finning.

Some countries have banned this practice and require the whole shark to be brought back to port before removing the fins.



Can sharks live without fin ?


When sharks have been finned, they are likely to die from lack of oxygen because they are not able to move to filter the water through their gills, or are eaten by other fish that have found them defenseless at the bottom of the ocean. 

Saturday, August 24, 2019

The Amazon Rainforest

The Amazon Rainforest


(All photos are collected from google)

The majority of the forest is contained within Brazil, with 60% of the rainforest, followed by Peru with 13%, Colombia with 10%, and with minor amounts in Venezuela, Ecuador, Bolivia, Guyana, Suriname and French Guiana.

The Amazon Rainforest in particular is known as 'the Lungs of the World' because it sucks up global emissions of carbon dioxide, and about 20% of earth's oxygen is produced. Tropical rainforests are often called the "lungs of the planet" because they generally draw in carbon dioxide and breathe out oxygen.

The Amazon represents over half of the planet's remaining rainforests, and comprises the largest and most biodiverse tract of tropical rainforest in the world, with an estimated 390 billion individual trees divided into 16,000 species.

The region is home to about 2.5 million insect species, tens of thousands of plants, and some 2,000 birds and mammals. To date, at least 40,000 plant species, 2,200 fishes, 1,294 birds, 427 mammals, 428 amphibians, and 378 reptiles have been scientifically classified in the region. One in five of all bird species are found in the Amazon rainforest, and one in five of the fish species live in Amazonian rivers and streams. Scientists have described between 96,660 and 128,843 invertebrate species in Brazil alone.

This year 2019, the Amazon rainforest recorded 72,843 fires in less than eight months, compared to the same period in 2018, which saw 40,000 fires - News report.




Dangerous species in the amazon rainforest


● Green Anaconda


Green Anaconda is a non-venomous boa species found in South America. It is the heaviest and one of the longest known extant snake species.

The primarily nocturnal anaconda species tend to spend most of its life in or around water. They have the potential to reach high speeds when swimming. They tend to float beneath the surface of the water with their snouts above the surface. When prey passes the anaconda strikes and coils around it with its body. The snake then constricts until it has suffocated the prey.


● Jaguar 


Jaguar in tupian called  beast of preys the third largest cat in the new world. This spotted cat closely resembles the leopard. These animals love swimming at any conditions. According to the studies jaguar plays a vital role to reduce pray's over population.

Jaguar is a predator at the top of a food chain, with no natural predators. Female territories, which range from 25 to 40 km square in size, may overlap, but the animals generally avoid one another. Male ranges cover roughly twice as much area, varying in size with the availability of game and space, and do not overlap. The territory of a male can contain those of several females.


● Electric Eel 


The electric eel is a South American electric fish. The electric eel has three pairs of abdominal organs that produce electricity: the main organ, the Hunter's organ, and the Sach's organ. These organs make up four fifths of its body, and give the electric eel the ability to generate two types of electric organ discharges: low voltage and high voltage. 


● Black Caiman


Black Caiman is a carnivorous reptile that lives along slow-moving rivers, lakes, seasonally flooded savannas of the Amazon basin, and in other freshwater habitats of South America. The black caiman is the largest predator in the Amazon ecosystem, preying on a variety of fish, reptiles, birds, and mammals. It is a generalist and apex predator, potentially capable of taking any animal within its range, including other predators.


● Poison Dart Frog


Poison Dart Frogs are diurnal and often have brightly colored bodies. This bright coloration is correlated with the toxicity of the species, making them aposematic. Natural habitats include subtropical and tropical, moist, lowland forests, subtropical or tropical high-altitude shrubland, subtropical or tropical, moist, montanes and rivers, freshwater marshes, intermittent freshwater marshes, lakes and swamps.


● Bullet Ant


Paraponera clavata is a species of ant, commonly known as the bullet ant. These ants are also renowned for their powerful sting and tribes of Brazil use bullet ant stings as part of their rites.


● Red-Bellied Piranha


Red-Bellied Piranha is locally abundant in its freshwater habitat. They are omnivorous foragers and feed on insects, worms, crustaceans and fish. They are a popular aquarium fish. The red-bellied piranha has a popular reputation as a ferocious predator, despite being primarily a scavenger. As their name suggests, red-bellied piranhas have a reddish tinge to the belly when fully grown, although juveniles are a silver color with darker spots. 


● Bull Shark


Bull sharks can thrive in both salt and fresh water and can travel far up rivers. The bull shark is a solitary hunter, though may briefly pair with another bull shark to make hunting and tricking prey easier. The bull shark prefers coastal water, which is less than 100 feet in depth. This is mostly due to their feeding patterns, since they prefer murky waters. This is also a problem, since this gives them the most interaction with humans.


● Pit Vipers


Pit address commonly known as pit vipers, group of snakes includes some of the most beautiful and most venomous and dangerous snake species in the world.

They are distinguished by the presence of a heat-sensing pit organ located between the eye and the nostril on both sides of the head. A deep pit, or fossa, in the loreal area between the eye and the nostril on either side of the head. These loreal pits are the external openings to a pair of extremely sensitive infrared-detecting organs, which in effect give the snakes a sixth sense to help them find and perhaps even judge the size of the small, warm-blooded prey on which they feed.

When prey comes into range, infrared radiation falling onto the membrane allows the snake to determine its direction. The paired pit organs provide the snake with thermal rangefinder capabilities. These organs are of great value to a predator that hunts at night, as well as for avoiding the snake’s own predators.


● Amazonian Giant Centipede


is a carnivore that feeds on any other animal it can overpower and kill. It is capable of overpowering not only other invertebrates  such as large insects, spiders, millipedes, scorpions, and even tarantulas, but also small vertebrates including small lizards, frogs (up to 95 mm long), snakes (up to 25 cm long), sparrow-sized birds, mice, and bats.


● Mosquito


The mosquito life cycle consists of egg, larva, pupa, and adult stages. Eggs are laid on the water surface; they hatch into motile larvae that feed on aquatic algae and organic  material. The mosquito's saliva is transferred to the host during the bite, and can cause an itchy rash.


● Harpy Eagle


Harpy Eagle is the largest and most powerful raptor found in the rainforest, and among the largest extant species of eagles in the world. On occasion, they may also hunt by flying within or above the canopy.


● Brazilian Wandering Spiders


Wandering spiders are so-called because they wander the jungle floor at night, rather than residing in a lair or maintaining a web. During the day they hide inside termite mounds, under fallen logs and rocks, and in banana  plants and bromeliads. P. nigriventer is known to hide in dark and moist places in or near human dwellings.


● Assassin Bug


Assassin Bug use the long rostrum to inject a lethal saliva that liquefies the insides of the prey, which are then sucked out. The saliva contains enzymes that digest the tissues they swallow. This process is generally referred to as extraoral digestion. The saliva is commonly effective at killing prey substantially larger than the bug itself.


● Tree Boa


Tree Boa is a non-venomous boa  species found in the rainforests of South America. The color pattern typically consists of an emerald green ground color with a white irregular interrupted zigzag stripe or so-called 'lightning bolts' down the back and a yellow  belly.


● Common Vampire Bat


Common Vampire Bat are leaf-nosed bats found in the Americas. Their food source is blood. Vampire bats, like snakes, have developed highly sensitive thermosensation, with specialized systems for detecting infrared radiation.



Deforestation of the Amazon rainforest


Deforestation of the Amazon rainforest can be attributed to many different factors at local, national, and international levels. The rainforest is seen as a resource for cattle pasture, valuable hardwoods, housing space, farming space, road works, medicines and human gain. Trees are usually cut down illegally.





Wednesday, August 21, 2019

10000 all time views

Thank you all


10000 all time views for my blog 

Happy day
(All photos uploaded in my blog are collected from google)



MARLIN

MARLIN


Photo :- google

Marlin has an elongated body, a spear-like snout or bill, and a long, rigid dorsal fin which extends forward to form a crest. Marlins are fast swimmers, reaching speeds of about 80 km/h (50 mph). Marlin is recognized as one of the foremost big game-species in the world, due to its incredible size, strength, power, and aggressive behavior.



DIET


The marlin feeds on a wide variety of organisms near the surface. It uses its bill to stun, injure, or kill while knifing through a school of fish or other prey, then returns to eat the injured or stunned fish. They feed on a variety of squid and pelagic fish. They are also known to feed on mackerel, tuna, and occasionally smaller dolphins when food-supplies are low.



LIFESPAN


Average lifespan of female marlin  is 27 years in the wild. Males live much shorter - only 18 years.


KING CRAB

KING CRAB


Photo :- google

King crab has large body covered with thick, armored shell. It has five pairs of legs. First pair is transformed into unevenly-sized pincers that are used for feeding.



DIET


King crab eat worms, clams, mussels, snails, brittle stars, sea stars, sea urchins, sand dollars, barnacles, fish parts, and algae.



LIFESAPN


King crabs typically live between 20 and 30 years.

Tuesday, August 20, 2019

FRESHWATER SNAIL

FRESHWATER SNAIL


Photo :- google

There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers.



DIET


They will eat almost anything including dead and rotting plants, fresh plants, dead animals, algae, vegetables, fish food, frozen foods, and live foods.



LIFESPAN


They generally live two to three years. However, in captivity, they can live past 15 years.

SEA SNAIL

SEA SNAIL


Photo :- google

A sea snail has a soft body that is usually protected by a shell. Most shells are spirally coiled while some sea snails, commonly called the impetus, have a conical shell.



SHELLS


Shells are found in a variety of shapes and sizes, but are normally very small. The shells of sea snails are strong and durable in many cases, as a group they are well represented in the fossil record.


DIET


Many snails  are herbivorous, eating plants or rasping algae from surfaces with their radulae, though a few land species and many marine species are omnivores or predatory carnivores.



LIFESPAN


Sea snails usually live about five years but can live as long as 25 years in the wild.

LAND SNAIL

LAND SNAIL


Photo :- google

Land snails have a strong muscular foot; they use mucus to enable them to crawl over rough surfaces and to keep their soft bodies from drying out.

A wide range of different vertebrate and invertebrate animals prey on land snails. They are used as food by humans in various cultures worldwide, and are raised on farms in some areas for use as food.



DIET


The diet of most land snails can include leaves, stems, soft bark, fruit, vegetables, fungi and algae. Some species can cause damage to agricultural crops and garden plants, and are therefore often regarded as pests.



LIFESPAN


Most species of land snail  are annual, others are known to live 2 or 3 years, but some of the larger species may live over 10 years in the wild.


EMU

EMU

Photo :- google

The emu is the second-largest living bird by height, after its ratite relative, the ostrich. Emus are soft-feathered, brown, flightless birds with long necks and legs, and can reach up to 1.9 metres (6.2 ft) in height. Emus can travel great distances, and when necessary can sprint at 50 km/h (31 mph).



AGGRESSIVE


If cornered, they kick with their big three-toed feet. The toe claws of emus are capable of eviscerating animals under the right conditions.



DIET


Emus are omnivorous and eat seeds, flowers, fruits and tender roots. During the summer they eat many insects, especially caterpillars, beetles and grasshoppers, and also small vertebrates.



LIFESPAN


The lifespan of the emu is between 10-20 years in the wild and up to 35 years in captivity.

Monday, August 19, 2019

OSTRICH

OSTRICH

Photo :- google

The ostrich is the tallest and heaviest species of all living birds. Although its bulky body means that flying is out of the question, the ostrich has adapted to life on the ground with impressive agility. 

Ostriches are superb runners that can sprint at speeds of up to 45 mph (72 km/h) on average, with a peak 60 mph (96.6 km/h) during short periods, with 12-foot (3.7 m) strides. This also makes the ostrich the fastest animal on two legs. The ostrich is also an endurance runner and can jog at 30 mph (48 km/h) for as long as half an hour.



AGGRESSIVE


An ostrich's powerful, long legs can also be formidable weapons. An Ostrich can kick with a force of about 2,000 pounds per square inch that is 141 kg per square cm. Ostrich kicks can kill a human or a potential predator like a lion. Each two-toed foot has a long, sharp claw.



DIET


They consume insects, snakes, lizards, and rodents. They also swallow sand and pebbles which help them grind up their food in their gizzard, a specialized, muscular stomach.



LIFE SPAN


The life span of an Ostrich can be up to 75 years.

Fastest Reptiles

List of Fastest Reptiles


* Central bearded dragon  -  40.23 km/h 

* Green Iguana  -  35.41 km/h 

* Leatherback sea turtle  -  35.28 km/h 

* Black mamba  -  22.53 km/h 

* Komodo dragon 20.92 km/h 

Fastest Fishes

List of Fastest Fishes


* Black marlin  -  132 km/h 

* Sailfish  -  109.19 km/h 

* Swordfish  -  97 km/h

* Wahoo  -  86 km/h

* Striped marlin  -  80 km/h

* Yellowfin tuna  -  76 km/h

* Bluefin tuna  -  74 km/h

* Shortfin mako shark  - 72 km/h

* Blue shark  -  69 km/h

* Bonefish  -  64 km/h

* Flying Fish  -  60 km/h

* Tarpon  -  56 km/h

* White shark  -  48 km/h

* Orca  -  48 km/h

Fastest Birds

List of Fastest Birds


* Peregrine falcon  -  389 km/h

* Golden eagle  -  240–320 km/h

* Steppe eagle  -  300 km/h

* Gyrfalcon  -  209 km/h

* Red-tailed hawk  -  190 km/h

* Common Swift  -  171 km/h

* White-throated needletail  -  169 km/h

* Eurasian hobby  -  160 km/h

* Frigatebird  -  153 km/h

* Rock pigeon  -  148.9 km/h

* Spur-winged goose  -  142 km/h

* Homing pigeon  -  140 km/h

* Red-breasted merganser  -  129 km/h

* Gyrfalcon  -  128 km/h

* Grey-headed albatross  -  127 km/h

* White-rumped Swift  -  124 km/h

* Canvasback  -  116 km/h

* Eider duck  -  113 km/h

* Common Teal  -  109 km/h

* Wandering albatross  -  108 km/h

* Wild Duck  -  105 km/h

* Northern Pintail  -  105 km/h

* Gannet  -  100 km/h

* Anna's hummingbird  -  98.27 km/h

* Ostrich  -  96.6 km/h 

Fastest Mammals

List of Fastest Mammals


* Mexican free-tailed bat  - 160 km/h

* Cheetah  -  109.4–120.7 km/h

* Pronghorn  -  88.5 km/h

* Springbok  -  88 km/h

* Springbok  -  88 km/h

* Wildebeest  -  80.5 km/h

* Lion  -  80.5 km/h

* Blackbuck  -  80 km/h

* Hare - 80 km/h

* Greyhound - 74 km/h

* Jackrabbit - 72 km/h

* African wild dog - 71 km/h

* Kangaroo - 71 km/h

* Horse - 70.76 km/h

* Onager - 70 km/h

* Thomson's gazelle - 70 km/h

* Coyote - 65 km/h

* Big brown bat - 64 km/h

* Common dolphin - 64 km/h

* Zebra - 64 km/h

* Tiger - 64 km/h

* Hyena  -  60 km/h

* Human  -  45km/h

* Wombat  -  40 km/h

* African elephant  -  24.9 km/h



CHEETAH

CHEETAH

Photo :- google

Fastest land-animal, fastest feline, the cheetah can accelerate from 0 to 96.6 km/h (60.0 mph) in under three seconds, though endurance is limited. Its lightly built, slender form is in sharp contrast with the robust build of the big cats.



DIET


Cheetahs are medium-sized cats that focus on prey that can be taken by speed. The diet of the cheetah consists of gazelles, wildebeest calves, impalas, and smaller hoofed animals in its habitat. Furthermore, cheetahs may eat rabbits, birds, hares, antelopes, and warthogs.



LIFE SPAN


The average life span in captivity is 10-12 years though cheetahs can live as long as 20 years.


Friday, August 16, 2019

GIRAFFE

GIRAFFE

Photo :- google

The giraffe is an African even-toed ungulate mammal, the tallest living terrestrial animal. Giraffes usually inhabit savannahs and woodlands. Their food source is leaves, fruits and flowers of woody plants, primarily acacia species, which they browse at heights most other herbivores cannot reach. 



DIET


They also feed on shrubs, grass and fruit. A giraffe eats around 34 kg (75 lb) of foliage daily. When stressed, giraffes may chew the bark off branches. Although herbivorous, the giraffe has been known to visit carcasses and lick dried meat off bones.



LIFESPAN


Lifespan is between 20 and 25 years in the wild and 28 years in captivity.

SERVAL

SERVAL

Photo :- google

The serval is a medium-sized cat, is an efficient, though not frequent, climber; an individual was observed to have climbed a tree to a height of more than 9 metres (30 feet) to escape predator.

Servals might be active for a longer time on cool or rainy days.



CHARACTERISTICS


The main characteristics include the small head, large ears, spotted and striped coat, long legs and a black-tipped tail that is around 30 cm.



DIET


The Serval is highly specialised for catching rodents, it is an opportunistic predator whose diet also includes hares, hyraxes, quails, flamingoes, quelea and teal, reptiles, insects, fish and frogs. The Serval has been observed taking larger animals, such as small antelopes etc...



LIFESPAN


Serval Lifespan: 11 years in the wild - 22 years in captivity

JAGUARUNDI

JAGUARUNDI

Photo :- google

The Jaguarundis are primarily diurnal, being active during the day rather than evenings or night. They are comfortable in trees, but prefer to hunt on the ground.

This cat varies in colour having a black to dark gray morph for those living in dense forests and riparian areas to a yellowish-red morph for those living in more open, drier scrub areas. Both color variations are known to be born within the same litter.



DIET


They will eat rodents, small reptiles, and ground-feeding birds. They have also been observed to kill larger prey, such as rabbits, and opossums; relatively unusual prey include fish and even marmosets. Like many other cats, they also include a small amount of vegetation and arthropods in their diets.



LIFE SPAN


This species lives for around 15 years in its natural habitat. It is known to have lived up for ten years in captivity.


Wednesday, August 14, 2019

Elephant's trunk

Elephant's trunk


Photo :- google

An elephant trunk has up to 40,000 muscles.  An elephant trunk has up to 40,000 muscles, divided into as many as 150,000 individual units. A human has more than 600 muscles in the entire body.

 A fusion of the nose and upper lip, the trunk is an elephant's most versatile tool. Elephants use their trunks to help them suck up water for drinking, pick up or touch objects, trumpet warnings, and greet one another.

In the trunk of the elephants there are also two nostrils, through which the elephants breathe. But the elephants can also soak up up to 8 litres of water into these nostrils and then blow it into their  mouth.



Sense of smell


The upper nasal cavities have chemical and olfactory sensors in the form of millions of receptor cells.

Monday, August 12, 2019

GASTRIC ACID or GASTRIC JUICE

GASTRIC ACID or GASTRIC JUICE


Gastric acid or Gastric Juice is a digestive fluid formed in the stomach and is composed of hydrochloric acid (HCl), potassium chloride (KCl), and sodium chloride (NaCl).

Parietal cell


Parietal cells in the stomach secrete roughly two liters of acid a day in the form of hydrochloric acid. Acid in the stomach functions to kill bacteria, and to aid digestion by solubilizing food. The acid is also important to establish the optimal pH (between 1.8-3.5) for the function of the digestive enzyme pepsin.



Parietal cells secrete acid in response to three types of stimuli


1. Histamine - stimulates H2 histamine receptors (most significant contribution).

2. Acetylcholine - from parasympathetic  activity via the vagus nerve and enteric nervous system, stimulating M3 receptors.

3. Gastrin - stimulating CCK2 receptors (least significant contribution, but also causes histamine secretion by local ECL cells)

Acids present in fruits and vegetables

Acids present in fruits and vegetables


1. Citric acid – present in citrus fruits likelemons, lime, oranges etc. Also, in tomatoes, pomegranates, grapes, berries,and pineapples.

2. Malic acid – High levels present in apples. Also in bananas, pomegranates, grapes, berries, tomatoes, and broccoli.

3. Oxalic acid – in green leafy vegetables and beets.

4. Ascorbic acid – Also known as Vitamin C. present in citrus fruits, berries, green leafy vegetables, green peppers, and tomatoes.

5. Tartaric acid – Grapes, tamarind, apples, apricots, and bananas.

ALOE VERA

ALOE VERA

Photo :- google

Aloe vera is a thick, short-stemmed plant that stores water in its leaves. The gel contains most of the bioactive compounds in the plant, including vitamins, minerals, amino acids and antioxidants.

Aloe vera cultivated for agricultural and medicinal uses.



How to harvest the plant


1. Remove 3-4 leaves at a time, choosing thick leaves from the outer sections of the plant.

2. Ensure the leaves are healthy and free of any mold or damage.

3. Cut them close to the stem. Most of the beneficial nutrients are found at the base of the leaves.

4. Trim the prickly edges with a knife, separate the interior gel from the outside of the leaf.

5. Allow the yellow sap to drain from the leaf. This is the aloe vera latex. 

6. Cut the aloe gel into slices.

IRRAWADDY DOLPHIN