images links abstract
Wiki Code Copy Tips Home

Animal

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.



Source: Animal
List of The Walking Dead episodes
Seychelles
Money laundering
Atlanta Falcons
List of country calling codes
Al Baqa
Venice
List of 2017 albums
Logan Lucky
UEFA Champions League
China
Cara Delevingne
Methamphetamine
Battle of Dunkirk
Craigslist
Gigi Hadid
Albus Dumbledore
Thomas Jefferson
David Hasselhoff
David Fincher
Somalia
Bed size
Mick Jagger
World War I
Billions (TV series)
Nier: Automata
WrestleMania 33
Dick Van Dyke
Oakland Raiders
East India Company
Janis Joplin
Viola Davis
The Edge of Seventeen
Gold
Jeremy Clarkson
27 Club
Killing of Harambe
List of Grand Slam men's singles champions
13 Hours: The Secret Soldiers of Benghazi
Great Britain
Patton Oswalt
Tom Brady
Criminal Minds
Laurence Fishburne
Khaidi No. 150
Brexit
Anne Heche
Sigmund Freud
RSS
Kennedy family
Terry Crews
States and union territories of India
Kevin Kline
Carol Burnett
Cyprus
Kangana Ranaut
Guy Pearce
James Gandolfini
Lolita
Chandragupta Maurya
Los Angeles
Lucifer
Oxygen
Bubonic plague
Wallis Simpson
Melanie Griffith
Santa Clarita Diet
Charles II of England
Ileana D'Cruz
June Carter Cash
H. R. McMaster
Naga Chaitanya
Hoda Kotb
Joan Crawford
Rita Ora
Band of Brothers (miniseries)
Antoine Griezmann
Channing Tatum
Muslim
Poldark (2015 TV series)
Don Quixote
UFC 213
Camilla, Duchess of Cornwall
List of Marvel Cinematic Universe television series
Ian Somerhalder
Queen Latifah
List of Mr. Robot episodes
Tokyo Ghoul
Patrick Wilson (American actor)
Liev Schreiber
Star Trek: The Next Generation
Christian Pulisic
Elizabeth of York
Alice Cooper
Impeachment
Lithuania
Coyote
Tim McGraw
Uttar Pradesh
50 Cent
Paris Hilton
Russia
John Laurens
Mark Cuban
Sex in film
Salman Khan
Chris Jericho
Indian Railways
Animal
Rogue One
Gerald R. Ford-class aircraft carrier
Major depressive disorder
Brave New World
Kodak Black
Mercedes-Benz
The Shack
Tyrese Gibson
Don Johnson
Geena Davis
Space Shuttle Challenger disaster
2017 ATP World Tour
Quantum mechanics
Colin Firth
Piers Morgan
Grand Theft Auto V
Grant Gustin
Cthulhu
21 Savage
Chuck Schumer
Al-Bassah
Kenya
Miss World 2017
Andrew Lincoln
Neanderthal
Underworld: Blood Wars
Sterling K. Brown
List of The Flash episodes
Didier Drogba
How to Get Away with Murder (season 3)
Tom Jones (singer)
Stonehenge
Day of the Dead
Hirohito
Varun Dhawan
Dark web
Idina Menzel
Influenza
The Matrix
The Golden Girls
Ben Shapiro
Dawn of the Planet of the Apes
Tiananmen Square protests of 1989
Nelson Mandela
Richard Harris
Alexandra Daddario
Jhené Aiko
Hugh Hefner
Cabinet of Donald Trump
Kesha
James VI and I
Tupac Shakur
Monica Bellucci
Sadomasochism
The Texas Chain Saw Massacre
Donnie Yen
Circumcision
Blake Griffin
Tamannaah
Logan Paul
Larry Page
Saroo Brierley
Alexa Bliss
Grace Jones
Rachel Weisz
Artificial intelligence
List of Arrow episodes
Bangladesh
Gary Ridgway
Lyme disease
Fibonacci number
Roger Waters
Machine Gun Kelly (rapper)
Glee (TV series)
Crazy Ex-Girlfriend (TV series)
Amitabh Bachchan
Holly Hunter
Gunpowder Plot
2017 NFL season
John Hurt
Kwanzaa
Queen Elizabeth The Queen Mother
Antonio Banderas
Swami Vivekananda
The Legend of Zelda
Christopher Nolan
Ashley Olsen
Joel Edgerton
Sex position
Manchester City F.C.
Guyana
TIPS: To create new content for your website or blog...
  1. Enter the title of a Wikipedia article in the box above.
  2. Select your options using the checkboxes, or use default settings.
  3. Click the 'go' button to retrieve the article.
  4. Click the 'Copy Code' button to copy the source code of the article to your clipboard.
  5. Paste the source code into your favorite HTML editor.
  6. Edit the content to suit your needs.
  7. Publish your new content to your website or blog.
  8. IMPORTANT: Before publishing, be sure to make significant changes to avoid creating duplicate content.
buy this site
Custom Website Development