#animals
Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from 8.5 millionths of a metre to 33.6 metres (110 ft) and have complex interactions with each other and their environments, forming intricate food webs. The category includes humans, but in colloquial use the term animal often refers only to non-human animals. The study of non-human animals is known as zoology.
Most living animal species are in the Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes—in which many groups of invertebrates are found, such as nematodes, arthropods, and molluscs—and the deuterostomes, containing the echinoderms and chordates (including the vertebrates). Life forms interpreted as early animals were present in the Ediacaran biota of the late Precambrian. Many modern animal phyla became clearly established in the fossil record as marine species during the Cambrian explosion which began around 542 million years ago. 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago.
Aristotle divided animals into those with blood and those without. Carl Linnaeus created the first hierarchical biological classification for animals in 1758 with his Systema Naturae, which Jean-Baptiste Lamarck expanded into 14 phyla by 1809. In 1874, Ernst Haeckel divided the animal kingdom into the multicellular Metazoa (now synonymous with Animalia) and the Protozoa, single-celled organisms no longer considered animals. In modern times, the biological classification of animals relies on advanced techniques, such as molecular phylogenetics, which are effective at demonstrating the evolutionary relationships between animal taxa.
Humans make use of many other animal species for food, including meat, milk, and eggs; for materials, such as leather and wool; as pets; and as working animals for power and transport. Dogs have been used in hunting, while many terrestrial and aquatic animals are hunted for sport. Non-human animals have appeared in art from the earliest times and are featured in mythology and religion.

List of Pinterest Animals images & Animals pictures

List of all Pinterest Animals images and pictures. Browse Pinterest Animals ideas

There are many decisions to consider when planning your Kilimanjaro climb, but the best you'll make will be to combine it with an African safari! Click pin through to post to learn more.

There are many decisions to consider when planning your Kilimanjaro climb, but the best you'll make will be to combine it with an African safari! Click pin through to post to learn more.

Крольчонок Микки🐰 Малыш сделан на заказ. В резерве. Reserve. #rabbit #feltingtoys #feltingwool #animals #крольчонок #кролик #зайчик #сухоеваляние #игрушкаизшерсти #авторскаяигрушка

Крольчонок Микки🐰 Малыш сделан на заказ. В резерве. Reserve. #rabbit #feltingtoys #feltingwool #animals #крольчонок #кролик #зайчик #сухоеваляние #игрушкаизшерсти #авторскаяигрушка

Beautiful. I think I understand Scottish Highlander.

Beautiful. I think I understand Scottish Highlander.

WILD ANIMAL CUTENESS :)))#wildanimals#wildness#cuteanimals

WILD ANIMAL CUTENESS :)))#wildanimals#wildness#cuteanimals

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Funny Pets Vs Water Compilation 😀

Please follow Animals Board for more videos

Ihr Fell ist flauschig, ihr Charakter liebevoll und ihre Frisuren einfach nur der Knaller. Natürlich ist hier die Rede von Alpakas. Wer sie noch nicht auf..

Ihr Fell ist flauschig, ihr Charakter liebevoll und ihre Frisuren einfach nur der Knaller. Natürlich ist hier die Rede von Alpakas. Wer sie noch nicht auf..

21 Adorable Baby Hippos That Are Cuteness Overload (Photos)

21 Adorable Baby Hippos That Are Cuteness Overload (Photos)

19 Super Teeny Weeny Itty Bitty Animals That Will Make You Squeal

19 Super Teeny Weeny Itty Bitty Animals That Will Make You Squeal

When i open the fridge and there's no food inside

When i open the fridge and there's no food inside

Material: Polyester :    Shirt Length: Regular :    Sleeve Length: Full :    Pattern Style: Others :    Weight: 0.499 kg :    Package Contents: 1 x Top  1 x Shorts:

Material: Polyester : Shirt Length: Regular : Sleeve Length: Full : Pattern Style: Others : Weight: 0.499 kg : Package Contents: 1 x Top 1 x Shorts:

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This dog always posts for pictures and travels with his owner everywhere.

This dog always posts for pictures and travels with his owner everywhere.

Cuccioli irresistibili: panda rosso

Cuccioli irresistibili: panda rosso

Combining his love of nature with his skills in animal photography, 21-year-old Ossi Saarinencaptures the many wild forest creatures living in Finland’s mystical woodlands.

Combining his love of nature with his skills in animal photography, 21-year-old Ossi Saarinencaptures the many wild forest creatures living in Finland’s mystical woodlands.

These Animal Jokes Are So Bad They’re GOOD…I’m Cracking Up!

These Animal Jokes Are So Bad They’re GOOD…I’m Cracking Up!

Welpe mit Marienkäfer auf der Schnauze

Welpe mit Marienkäfer auf der Schnauze

50 Beautiful Wild Animals | CutesyPooh

50 Beautiful Wild Animals | CutesyPooh

20+ Baby Animals That Can Save Your Gloomy Day   #funny #funnypic #picture #animals #cuteanimals

20+ Baby Animals That Can Save Your Gloomy Day #funny #funnypic #picture #animals #cuteanimals

20+ Baby Animals That Can Save Your Gloomy Day   #funny #funnypic #picture #animals #cuteanimals

20+ Baby Animals That Can Save Your Gloomy Day #funny #funnypic #picture #animals #cuteanimals

“Happiness is not something ready made. It comes from your own actions.” -Dalai Lama XIV /;)

“Happiness is not something ready made. It comes from your own actions.” -Dalai Lama XIV /;)

Preciousness!!!! Funny animal - A professional photographer is very smart in taking pictures. The following is a collection of images of the animals, animals with humans, animals with children, animals playing, etc. It is very very cute and adorable. #animals #cuteanimal #funny #babyanimal #kids

Preciousness!!!! Funny animal - A professional photographer is very smart in taking pictures. The following is a collection of images of the animals, animals with humans, animals with children, animals playing, etc. It is very very cute and adorable. #animals #cuteanimal #funny #babyanimal #kids

Tiger and water photo by Robert Cinega

Tiger and water photo by Robert Cinega

The best-known countries for African Safaris are Tanzania, Kenya, Botswana, Namibia and South Africa. Get ready for the best African safari experience at any one of the following national parks.

The best-known countries for African Safaris are Tanzania, Kenya, Botswana, Namibia and South Africa. Get ready for the best African safari experience at any one of the following national parks.

How cute is this white polar cub? Check out all the best tips and tricks for eBay sellers on ResellingRevealed.com  The best eBay blog on the net for BOLO lists, eBay How-To Guides, and more!

How cute is this white polar cub? Check out all the best tips and tricks for eBay sellers on ResellingRevealed.com The best eBay blog on the net for BOLO lists, eBay How-To Guides, and more!

43 Clichés Exceptionnels de la Nature Comme vous ne l'avez Jamais Vue

43 Clichés Exceptionnels de la Nature Comme vous ne l'avez Jamais Vue