Instant Genius: Fish

Everything you need to know about our ocean-dwelling friends. There are always more fish facts in the sea...

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Here are even more fin-tastic features about fish that we think you’ll love:

Fishing damages entire ecosystems and pollutes our oceans. So would we be better off without it?

So-called ‘environmental DNA’ is helping conservationists keep track of marine species


Fish can recognise members of the same species and tell if other fish are siblings, but they probably can’t identify themselves.

Though less sensitive to cold, fish feel pressure much more strongly than mammals.

Fish follow a few simple rules to form complicated choreography in groups.