#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.
Historically, 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

62 Heartwarming Animal Photos And The Story Behind Them
62 Heartwarming Animal Photos And The Story Behind Them
62 Heartwarming Animal Photos And The Story Behind Them | History Daily
Pictures of the Day: 20 November 2018
Pictures of the Day: 20 November 2018
A tiger leaping in snow in Hlinsko, Czech Republic. The tiger belongs to an animal trainer who had allowed it to roam freely for the photo shoot.
These Cute Photos Of Baby Animals Will Surely Make Your Day
These Cute Photos Of Baby Animals Will Surely Make Your Day
These Cute Photos Of Baby Animals Will Surely Make Your Day
The 100 Cutest Animals Of All Time
The 100 Cutest Animals Of All Time
The 100 Cutest Animals Of All Time - List Inspire
19 Super Teeny Weeny Itty Bitty Animals That Will Make You Squeal
19 Super Teeny Weeny Itty Bitty Animals That Will Make You Squeal
19 Super Teeny Weeny Itty Bitty Animals That Will Make You Squeal
65 Baby Animals That Can Fill Your Heart With Joy
65 Baby Animals That Can Fill Your Heart With Joy
65 Baby #Animals That Can Fill Your Heart With Joy
60 Funny Furry Animals To Brighten Your Day
60 Funny Furry Animals To Brighten Your Day
60 Funny #Furry #Animals To Brighten Your Day
These Cute Photos Of Baby Animals Will Surely Make Your Day
These Cute Photos Of Baby Animals Will Surely Make Your Day
Крольчонок Микки🐰 Малыш сделан на заказ. В резерве. Reserve. #rabbit #feltingtoys #feltingwool #animals #крольчонок #кролик #зайчик #сухоеваляние #игрушкаизшерсти #авторскаяигрушка
It’s all about making the small changes to help protect this beautiful World we live on. From sweatshirts made from recycled plastic to reusable cups and bottles. Shop these and more over at our Beach Boutique.
It’s all about making the small changes to help protect this beautiful World we live on. From sweatshirts made from recycled plastic to reusable cups and bottles. Shop these and more over at our Beach Boutique.
49 Animal Memes Because Animals Are Funny
49 Animal Memes Because Animals Are Funny
49 Animal Memes Because Animals Are Funny | CutesyPooh
This Visual Artist Uses His Magical Skills To Raise Awareness For Engangered Species
This Visual Artist Uses His Magical Skills To Raise Awareness For Engangered Species
16 Stunning Animal Portraits By Andreas Häggkvist To Raise Awareness For Endangered Species
Interview: Photographer Captures Enchantment of Real-Life “Fairy Forests” in Finland
Interview: Photographer Captures Enchantment of Real-Life “Fairy Forests” in Finland
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.
27 Bunnies That Will Cure Any Case of the Mondays
27 Bunnies That Will Cure Any Case of the Mondays
Still recovering from the weekend? These bunnies will make sure you start your week off…
20 Adorable Animals That Will Make Your Day Brighter
20 Adorable Animals That Will Make Your Day Brighter
20 Adorable Animals That Will Make Your Day Brighter | CutesyPooh
Cute Mother and Baby Animal Pics
Cute Mother and Baby Animal Pics
Photo of animals
20+ Baby Animals That Can Save Your Gloomy Day
20+ Baby Animals That Can Save Your Gloomy Day
20+ Baby Animals That Can Save Your Gloomy Day #funny #funnypic #picture #animals #cuteanimals
Die etwas grösseren Tierbabys: So süss sind Schottische Hochlandrinder
Die etwas grösseren Tierbabys: So süss sind Schottische Hochlandrinder
This is not steak or hamburgers. This is a beautiful living breathing animal that happens to be a cow.
27 Animals That Start With M in The World [Pictures of Animals]
27 Animals That Start With M in The World [Pictures of Animals]
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
These Adorable Photos Of Baby Hippos Redefine Cuteness Overload
These Adorable Photos Of Baby Hippos Redefine Cuteness Overload
These Adorable Photos Of Baby Hippos Redefine Cuteness Overload
Spring Baby Animals
Spring Baby Animals
Spring Baby Animals - baby animal photos - Woman And Home