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Oct 22, 2023 · AZ Animals is a growing team of animals experts, researchers, farmers, conservationists, writers, editors, and -- of course -- pet owners who have come together to help you better understand the animal kingdom and how we interact.
- African Civet
Small animals such as frogs, rodents, lizards, and snakes...
- Facts, Pictures and Resources
African Animals – Africa is home to some of the most...
- African Civet
Explore the fascinating world of animals with National Geographic, from cockroaches to orcas, from fireflies to sperm whales. Read stories, watch videos, and learn about conservation, science, and culture.
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia ( / ˌænɪˈmɑːliə / [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.
Explore amazing facts, photos, and videos of your favorite animals with National Geographic Kids. Join the fun and learn more about the natural world.
- Overview
- The animal kingdom
Animals are multicellular eukaryotes whose cells are bound together by collagen. Animals dominate human conceptions of life on Earth because of their size, diversity, abundance, and mobility. The presence of muscles and mobility is one of the primary characteristics of the animal kingdom.
What are the two major groups of animals?
The two major groups of animals are vertebrates and invertebrates. Vertebrates have backbones, and invertebrates do not.
When did animals first appear?
Animals first appeared in the Ediacaran Period, about 635 million to 541 million years ago, as soft-bodied forms that left traces of their bodies in shallow-water sediments.
What are the basic functional systems of animals?
Animals evolved from unicellular eukaryotes. The presence of a nuclear membrane in eukaryotes permits separation of the two phases of protein synthesis: transcription (copying) of deoxyribonucleic acid (DNA) in the nucleus and translation (decoding) of the message into protein in the cytoplasm. Compared to the structure of the bacterial cell, this ...
Learn about any animal using the search box or browse by letter. Discover the diversity, characteristics, and conservation status of thousands of animals from around the world.
Explore the diversity and wonder of animals with pictures, videos, facts, news, and more from National Geographic. Discover the latest stories, videos, and photos of amphibians, birds, fish, invertebrates, mammals, reptiles, and more.
