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

Wild birds as offerings to the Egyptian gods

Millions of ibis and birds of prey mummies, sacrificed to the Egyptian gods Horus, Ra or Thoth, have been discovered in the necropolises of the Nile Valley. Such a quantity of mummified birds raises the question of their ...

Do rats like to be tickled?

Not all rats like to be tickled but by listening to their vocalizations it is possible to understand in real-time their individual emotional response, according to new research by the University of Bristol. The study, published ...

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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