Immunology

Cause of inflammatory bowel disease discovered

Chronic inflammatory bowel disease (IBD) is becoming increasingly widespread. Until now, however, the underlying causes of the inflammation responses were unclear. Scientists at the Technical University of Munich (TUM) have ...

Medical research

Vagus nerve active during exercise, research finds

The vagus nerve, known for its role in 'resting and digesting,' has now been found to have an important role in exercise, helping the heart pump blood, which delivers oxygen around the body.

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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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