Engineering

New algorithm mimics electrosensing in fish

While humans may struggle to navigate a murky, turbid underwater environment, weakly electric fish can do so with ease. These aquatic animals are specially adapted to traverse obscured waters without relying on vision; instead, ...

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DeepLabCut-Live! Real-time marker-less motion capture for animals

Gollum in "The Lord of the Rings," Thanos in the "Avengers," Snoke in "Star Wars," the Na'vi in "Avatar"—we have all experienced the wonders of motion-capture, a cinema technique that tracks an actor's movements and translates ...

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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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