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 Any member of the group of  vertebrate  animals in which the young are nourished with  milk from special mammary  glands of the mother. In addition hair is a typical mammalian feature, although in many whales it has disappeared except in the fetal stage.  

 Reptiles are tetrapod vertebrates creatures that either have four limbs or, like snakes, are descended from four-limbed ancestors. Unlike amphibians, reptiles do not have an aquatic larval stage.  They are col-blooded, which means they rely on heat from their surroundings to keep warm. Most reptiles lay eggs.

 Amphibians are small vertebrates that need water, or a moist environment, to survive.

 Amphibians also have special skin glands that produce useful proteins. Some transport water, oxygen, and carbon dioxide either into or out of the animal.  Like reptiles, amphibians are cold-blooded. Because of their special skin, they require very specific living conditions. Too much sun can damage their cells. Too much wind can dry their skin and dehydrate the animal.  

Animals that lives entirely in the dark parts of caves. Such creatures have become specially adapted for living in total darkness and over time they have evolved to develop enhanced senses of smell, taste and vibration detection, while losing anatomical features that are unessential without light, such as functioning eyes and pigmentation. 

A vertebrate is an animal with a backbone. Vertebrates are also called Craniata, any animal of the subphylum vertebrata. They are also characterized by a muscular system consisting primarily of bilaterally paired masses and a central nervous system partly enclosed within the backbone.

An invertebrate is a cold-blooded animal with no backbone. More than 90 percent of all living animal species are invertebrates. Invertebrates are generally soft-bodied animals that lack a rigid internal skeleton for attachment of muscles but often possess a hard outer skeleton. 

 Meaning 'meat eater' is any animal with a diet consisting primarily of meat, whether it comes from animals living or dead. 

Animals eating plants. Fungi, bacteria and protists that feed on living plants are usually termed plant pathogens. Flowering plants that obtain nutrition from other living plants are usually termed parasitic plants. .

Species that consume both plants and animals as their prime food source. They are opportunistic, general feeders not exclusively adapted to eat and digest either meat or plant material exclusively.

(Felis pardalis)

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(pipile pipile)

 The pawi grows approximately 65 cm in length and is a black-and-white cracid. It has a large crest is blackish, edged with white, and there are large white wing patches. They are bare faced and and the legs are red. They have a thin piping voice and usually, in display, make a rattling whirr with it's wings. 

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(Ara ararauna)

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(Trichehus manatus)