News tagged with animals

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

Energy drinks raise new questions about caffeine's safety

Caffeine, which was extensively researched for possible links to birth defects in animals and cardiovascular disease in humans over 30 years ago and then exonerated, has become the focus of renewed concerns as caffeine-containing ...

Jun 24, 2014
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Anxiety in invertebrates opens research avenues

Fr the first time, CNRS researchers and the Université de Bordeaux have produced and observed anxiety-like behavior in crayfish, which disappears when a dose of anxiolytic is injected. This work, published in Science on ...

Jun 23, 2014
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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.

This text uses material from Wikipedia, licensed under CC BY-SA

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