Ancient comb jelly had more complex nerves than its modern relatives

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Comb jelly

An artist’s impression of the comb jelly fossil

Holly Sullivan

A comb jelly fossil from some 500 million years in the past reveals a beforehand unknown species of those historic sea animals that had a extra complicated nervous system than their trendy descendants.

Evolutionary concept doesn’t preclude the opportunity of organisms changing into easier over geological time, however it’s a comparatively unusual phenomenon. Examples are principally restricted to historic arthropods, sea lilies, and brachiopods – also referred to as lamp shells.

“Comb jellies occupy a a lot earlier place within the animal tree of life [than arthropods and brachiopods], so it’s filling …

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