(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 ...

In the limestone ranges of Western Australia’s Kimberley region, near the town of Fitzroy Crossing, you’ll find one of the world’s best-preserved ancient reef complexes. Here lie the remnants of ...

An international team of scientists has described a rare fossil site that is believed to be among the earliest evidence of different fish species using a common nursery — much like ones utilized by ...

A team of Australian scientists has discovered the world’s oldest heart, part of the fossilized remains of an armored fish that died some 380 million years ago. The fish also had a fossilized stomach, ...

When an Australian scientist uncovered an ancient-looking placoderm skull in the 1960s, he thought he'd cracked the code on an evolutionary mystery. This so-called 'platypus fish,' scientists had ...

Giving birth to live young is thought to mainly occur in mammals and sharks, but a new study suggests that it was once a common mechanism for reproduction. A large group of ancient fish carried its ...

New findings on the brain and inner ear cavity of a 400-million-year-old platypus-like fish cast light on the evolution of modern jawed vertebrates, according to a study led by Dr. ZHU Youan and Dr.

WASHINGTON (Reuters) - A bottom-dwelling, mud-grubbing, armoured fish that swam in tropical seas 423 million years ago is fundamentally changing the understanding of the evolution of an indisputably ...