(Reuters) - Scientists in Australia have unearthed beautifully preserved fossilized hearts and other internal organs of ancient armored fish in a discovery that provides insight into the evolution of ...

The fossilized skull of Coccocephalus wildi, an early ray-finned fish that swam in an estuary 319 million years ago.Jeremy Marble/University of Michigan News Scientists discovered the fossilized brain ...

The fossilized skull of Coccocephalus wildi, an early ray-finned fish that swam in an estuary 319 million years ago. The fish is facing to the right, with the jaws visible in the lower right portion ...

Artist's reconstruction showing the life stages of the fossil lamprey Priscomyzon riniensis. It lived around 360 million years ago in a coastal lagoon in what is now South Africa. Clockwise from right ...

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March 10 (UPI) --Fossil evidence of Earth's earliest vertebrates is sparse, but many scientists agree that a model for the ancestors of the all living vertebrates can still be found in the coastal and ...

Ever wonder why teeth hurt? Blame it on a prehistoric armored fish. While the outer layer of our teeth is coated in hard enamel, it’s the inner layer, called dentine, that feels pain. Dentine carries ...

Humans are one of 60,000 species that share a 500 million year old common ancestor. This creature was the ancestor of almost every vertebrate species, but it had a sixth sense that most of its ...

(CNN) — The sensitive interior of human teeth might have originated from a seemingly unlikely place: sensory tissue in fish that were swimming in Earth’s oceans 465 million years ago. While our teeth ...