But that doesn’t mean you’re out of luck in seeing prehistoric ... can still hear sounds, even though they have no outside ears, like modern-day reptiles. This is similar to how fish hear ...

Jellyfish are not fish, despite their name; they do not have backbones, gills, scales, or fins. Occasionally, they organise into large clusters called flowers. Horseshoe Crab Horseshoe crabs have ...

Researchers have discovered a 380-million-year-old heart preserved inside a fossilised prehistoric fish. They say the specimen ... "A lot of the things you see we still have in our own bodies ...

World's oldest heart found in prehistoric fish Scientists find 'oldest human ... Why is it important – and why do we still continue the tradition? A man who lived for years with a brain cyst ...