Animals

Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). The animal kingdom emerged as a clade within Apoikozoa as the sister group to the choanoflagellates. Animals are motile, meaning they can move spontaneously and independently at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance. Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. Animals can be divided broadly into vertebrates and invertebrates. Vertebrates have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. They include fish, amphibians, reptiles, birds and mammals. The remaining animals are the invertebrates, which lack a backbone. These include molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders, scorpions, crabs, lobsters, shrimp); annelids (earthworms, leeches), nematodes (filarial worms, hookworms), flatworms (tapeworms, liver flukes), cnidarians (jellyfish, sea anemones, corals), ctenophores (comb jellies), and sponges. The study of animals is called zoology.

Bear Family Colouring Pages

Big Grizzly Bear Family Colouring Pages

About Big Grizzly Bear Family Colouring Pages The grizzly bear is a large subspecies of brown bear inhabiting North America. Scientists generally do not use...

Stripy and Fierce Himalayan Tiger Colouring Pages

About Stripy and Fierce Himalayan Tiger Colouring Pages There is no clear difference between the Malayan and the Indochinese tiger in pelage or skull size....
Panda Colouring Pages

Bamboo Lover Black And White Panda Colouring Pages

About Bamboo Lover Black And White Panda Colouring Pages The giant panda also known as panda bear or simply panda, is a bear native to...
Gorilla Colouring Pages

Powerful Gorilla Colouring Pages

About Powerful Gorilla Colouring Pages Gorillas are ground-dwelling, predominantly herbivorous apes that inhabit the forests of central Sub-Saharan Africa. The eponymous genus Gorilla is divided...
Rhinoceros Colouring Pages

Cute Rhinoceros Family Colouring Pages

About Cute Rhinoceros Family Colouring Pages Rhinoceros are killed by humans for their horns, which are bought and sold on the black market, and which...
Snake Colouring Pages

Snake Holding An Apple Colouring Pages

About Snake Holding An Apple Colouring Pages Snakes are elongated, legless, carnivorous reptiles of the suborder Serpentes. Like all squamates, snakes are ectothermic, amniote vertebrates...
Hippopotamus Colouring Pages

Strong Hippopotamus Colouring Pages

About Strong Hippopotamus Colouring Pages The common hippopotamus (Hippopotamus amphibius), or hippo, is a large, mostly herbivorous, semiaquatic mammal native to sub-Saharan Africa, and one...
Racoon Colouring Pages

Happy Family Of Masquerade Racoon Colouring Pages

About Happy Family Of Masquerade Racoon Colouring Pages The raccoon, sometimes spelled racoon, also known as the common raccoon, North American raccoon, northern raccoon and...
Goat Colouring Pages

Old Goat With White Goatee Colouring Pages

About Old Goat With White Goatee Colouring Pages The goat is among the earliest animals that are tamed by humans. The most recent genetic analysis...
Mouse Colouring Pages

Small and Mischievous Mouse Colouring Pages

About Small and Mischievous Mouse Colouring Pages Mouse is a medium and long tailed rodentia in Muroidea family. The "true mouse" is a genus of...