Make fishing nets in the forest and cooking fish on a rock ...

They are among the most primitive of the ray-finned ... Like many of the other living fossil fish, the bichir is especially adapted to life in dry environments. Instead of a regular swim bladder ...

Fish appear in the fossil record before four-legged animals (tetrapods), so the ancestor of this group must be at least as primitive as a fish. The most ancient fish were jawless, and since our ...

Placoderms were the planet's dominant life form for 60 million years ... its heart was more complex than expected for these primitive fish. It had two chambers one on top of each other, similar ...

A tropical reef in the Czech Republic, 409 million years ago: Radotina, one of the most primitive jawed vertebrates with teeth, emerges from its hiding place in the empty shell of a giant nautiloid to ...