All fish share two traits: they live in water and they have a backbone—they are vertebrates. Apart from these similarities, however, many of the species in this group differ markedly from one ...

Several kids used cast nets to catch live bait, filling buckets with shrimp, minnows and other small fish. Two boys fished from the upper dock, and one yelled, “Fish on!” as he pulled up a big ...

When fish get thirsty do they drink sea water? – Torben, aged nine, Sussex, UK. This is a great question, Torben, thanks very much for sending it in.