Related topics: plants · species · birds · offspring · insects

Field studies confirm social network shrinking for aging monkeys

As people get older, they increasingly focus on their more important relationships, often turning to family and close friends. This active reorientation towards a few, particularly close relationships could explain why aging ...

Sea anemones study reveals insights into predator-prey dynamics

A new study reveals crucial insights into animal defense mechanisms and tradeoffs. The surprising discovery of a native anemone population lacking the Nv1 neurotoxin led to an investigation into its impact on defending against ...

The surprising key to magpie intelligence: It's not genetic

If you've ever had the pleasure of encountering Australia's iconic magpies, you know these birds are intelligent creatures. With their striking black and white plumage, loud warbling voices and complex social behaviors, magpies ...

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Animal

Animals are a major group of mostly multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life. Most animals are motile, meaning they can move spontaneously and independently. Most animals are also heterotrophs, meaning they must ingest other organisms for sustenance.

Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago.

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