1.
Eagle is the name given to the largest predatory birds. The various species and subspecies of eagles can be found anywhere in the world except Antarctica. They are members of the birds of prey, of the order of Accipitriformes, 1 family of the Accipitridae, subfamily Buteoninae. They belong to several groups, which are subject to a more appropriate reclassification that the experts do not reach a consensus opinion. The eagles are characterized by their large size, robust constitution, heavy head and bill.
Like all birds of prey, eagles have a large, powerful and pointed beak to loosen the flesh of their prey. They also have powerful claws and shanks. It also draws attention to the strength of the eagles, which enables them to lift prey much heavier than them in flight. It also has an extremely sharp view that allows you to see the results at a distance, for example, the golden eagle has two focal points in its eyes, one to look forward and another to locate the look to the sides scanning the distance.
2.
Bears or Ursids (Ursidae) are a family of carnivorous mammals.1 They are large animals, generally omnivores because, despite their fearsome teeth, they eat fruits, roots and insects, as well as meat. However, the polar bear, due to the scarcity of other food sources, feeds almost exclusively on meat.2 With their heavy bodies and powerful jaws, bears are among the largest carnivores that live on Earth. A male polar bear weighs an average of 500 kg and reaches a size of up to 130 cm at the height of the cross.3 They move with a heavy walk, supporting the entire sole of the feet (they are, therefore, plantigrade animals). ). They have short ears and a rudimentary tail.
3.
The penguins (family Spheniscidae, order Sphenisciformes) are a group of seabirds, not flying, which are distributed almost exclusively in the Southern Hemisphere (except the penguin of the Galapagos Islands, a species of the genus Spheniscus: Spheniscus mendiculus, endemic to the islands Galápagos, Ecuador). The name of the order comes from the word Spheniscus which comes from the Greek σφήν (Sphen) = wedge, -iscus is a diminutive suffix. Literally "wedge", referring to its hydrodynamic shape when swimming.
4.
Most foxes live between 5 to 7 years in freedom, although they can reach 12, or even exceed that age in captivity. They are generally smaller than other members of the Canidae family, such as; wolves, jackals and domestic dogs. Its typical features include a thin snout and a thick tail. Other physical characteristics vary by habitat. For example, the desert fox has long ears and short fur, while the Arctic fox has small ears and dense fur.
Unlike many canids, foxes are not usually herd animals. They are solitary hunting their prey (especially rodents). Using a jump technique practiced from a very early age in which, depending on the terrain, it uses one technique or another; For example, in the snow it listens to the prey under the thick layer and when it predicts its movements, it takes a very high jump in vertical position to penetrate the snow more effectively and thus reach the prey, they are capable to kill his prey swiftly. Their diet includes everything from grasshoppers to fruit and berries, and they have the overdeveloped mammary gland phenotype.
5.
The white tigers are examples of tiger (Panthera tigris) with a genetic condition that almost eliminates the pigment of its normally orange coloration, although the black stripes are not affected. This occurs when a tiger inherits two copies of the recessive gene for pale coloration: pink nose, ice-blue eyes, and cream-white skin with black, gray, or light brown stripes.
White tigers are not a separate subspecies and are fertile with orange tigers, although all the resulting offspring will be heterozygous for the recessive gene, and their coloration will be orange. The only exception would be if the orange progenitor was also a heterozygous tiger with a recessive gene for pale coloration, which would give it a 50% chance of being double recessive for white or heterozygous for orange.
Compared to orange tigers without the white gene, white tigers tend to be larger both at birth and at their maximum adult size. This may have given them an advantage despite their unusual coloration. The heterozygous orange tigers also tend to be larger than other tigers. In 1960, Kailash Sankhala (director of the New Delhi Zoo) suggested that "one of the functions of the target gene may have been to maintain the gene size in the population, if needed."
The white tigers are usually of the subspecies of the Bengal tiger (Panthera tigris tigris) or the Siberian tiger (Panthera tigris altaica), although there are historical data of appearance in several more subspecies. Currently, several hundred white tigers are in captivity around the world, with 100 of them in India, and their number is increasing. The current population includes pure Bengal tigers and Bengal and Siberian hybrids, but it is uncertain whether the recessive gene of the white came only from Bengal or Siberian
