livebeyondsports

livebeyondsports

  • Home
  • Cricket
    • House
  • Football
    • House
  • Contact us
Reading: Animals are our friends
Share
Aa

livebeyondsports

livebeyondsports

Aa
  • Home
  • Cricket
  • Football
  • Contact us
  • Home
  • Cricket
    • House
  • Football
    • House
  • Contact us
Follow US
© 2022 Foxiz News Network. Ruby Design Company. All Rights Reserved.
livebeyondsports > Uncategorized > Animals are our friends
Uncategorized

Animals are our friends

Vansh Panda
Last updated: 2025/07/09 at 12:14 PM
Vansh Panda 3 weeks ago
Share
SHARE

 

Animals are multicellular, eukaryotic organisms comprising the biological kingdom Animalia (/ˌænɪˈmeɪliə/[4]). With few exceptions, animals consume organic material, breathe oxygen, have myocytes and are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. Animals form a clade, meaning that they arose from a single common ancestor. Over 1.5 million living animal species have been described, of which around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates. It has been estimated there are as many as 7.77 million animal species on Earth. Animal body lengths range from 8.5 μm (0.00033 in) to 33.6 m (110 ft). They have complex ecologies and interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology, and the study of animal behaviour is known as ethology.

The animal kingdom is divided into five major clades, namely Porifera, Ctenophora, Placozoa, Cnidaria and Bilateria. Most living animal species belong to the clade Bilateria, a highly proliferative clade whose members have a bilaterally symmetric and significantly cephalised body plan, and the vast majority of bilaterians belong to two large clades: the protostomes, which includes organisms such as arthropods, molluscs, flatworms, annelids and nematodes; and the deuterostomes, which include echinoderms, hemichordates and chordates, the latter of which contains the vertebrates. The much smaller basal phylum Xenacoelomorpha have an uncertain position within Bilateria.

Animals first appeared in the fossil record in the late Cryogenian period and diversified in the subsequent Ediacaran period in what is known as the Avalon explosion. Earlier evidence of animals is still controversial; the sponge-like organism Otavia has been dated back to the Tonian period at the start of the Neoproterozoic, but its identity as an animal is heavily contested.[5] Nearly all modern animal phyla first appeared in the fossil record as marine species during the Cambrian explosion, which began around 539 million years ago (Mya), and most classes during the Ordovician radiation 485.4 Mya. Common to all living animals, 6,331 groups of genes have been identified that may have arisen from a single common ancestor that lived about 650 Mya during the Cryogenian period.

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 taxa.

Humans make use of many other animal species for food (including meat, eggs, and dairy products), for materials (such as leather, fur, and wool), as pets and as working animals for transportation, and services. Dogs, the first domesticated animal, have been used in hunting, in security and in warfare, as have horses, pigeons and birds of prey; while other terrestrial and aquatic animals are hunted for sports, trophies or profits. Non-human animals are also an important cultural element of human evolution, having appeared in cave arts and totems since the earliest times, and are frequently featured in mythology, religion, arts, literature, heraldry, politics, and sports.

Share this Article
Facebook Twitter Email Print
What do you think?
Love0
Sad0
Happy0
Sleepy0
Angry0
Shy0
Previous Article Creature regarding the Black colored Lagoon slot Zuma Slots, Real money Video slot & 100 percent free Gamble Trial
Next Article Fantasini: Master of piggy bankhaus Slot Mystery Video Spiele Bericht

Follow US

Find US on Social Medias
90.3k Like
7.4k Follow
644.7k Subscribe
4.7k Follow
Popular News

Play Online slots Zero divine fortune slot for real money Register Needed

Vansh Panda Vansh Panda 2 weeks ago
Oklahoma Online casinos A real casino caribbean holdem online real money income Gambling Ok
500+ *Starburst* Freispiele bloß Einzahlung! Juni 2025 Free Spins
Utländska Casino Inga insättningsbonus riktiga pengar Tilläg Utan Insättningskrav, Topplista 2025
Kampanja Sharky peliautomaatti pois sattumanvaraisesta asemasta
Wolf Focus on Slot machine game Gamble Free Position Online game bar bar black sheep casino On the internet
Vorteile Vox Casino
Totally free Spins No deposit Local casino 2025: Uptown Aces Releases Zero
Phoenix Flamesビデオゲームの意見

Quick Navigation

  • About Us
  • Contact us
  • Cookie Policy
  • Copy Rights (DMCA)
  • Disclaimer
  • Home

© LiveBeyondSports Network. All Rights Reserved.

  • Home
  • About Us
  • Cookie Policy
  • Copy Rights (DMCA)
  • Disclaimer
  • Contact us

Removed from reading list

Undo
Welcome Back!

Sign in to your account

Lost your password?