The oldest-known animal eggs and embryos, whose first pictures made the cover of Nature in 1998, were so small they looked like bugs – which, it now appears, they may have been. This week, a ...

Even more intriguing, the frog was clearly gravid, or pregnant with eggs. Anuran eggs within body cavities of the fossil frog Gansubatrachus qilianensis (paratype JQ-HX-QW-02) and extant ranid frog.

Life Fossil trove reveals three new species of ancient egg-laying mammals A set of Australian fossils offers a rare glimpse of the ancient relatives of platypuses and echidnas that lived alongside ...

Scientists in Rajasthan have discovered a rare crocodile-like fossil over 200 million years old. The fossil, found in ...

Figuring out what dinosaurs looked like isn't easy, and neither is figuring out what their eggs looked like, but scientists ...

I wondered if they could be animal eggs, or some new type of organism. There's nothing quite like them, living or extinct." ...

Researchers in India have discovered the fossilised remains of a rare crocodile-like species from the Jurassic era in the ...

Fossilized footprints and tracks dating back 50 million years ago discovered at the John Day Fossil Beds National Monument could provide new insight into how prehistoric animals lived in Oregon.

The prehistoric animal kingdom was a riot of colors, from iridescent-feathered dinosaurs to jet-black ink excreted by Jurassic squid relatives. Like modern-day animals, ancient species' hues ...

Fossilized teeth show that two different kinds of ancient human ancestors coexisted more than 2 million years ago. One of ...