A treasure trove of fossilized dinosaur embryos shows signs of extremely fast growth.
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A small insect-eating animal is the common ancestor of whales, elephants, dogs, and humans.
New analyses of fossils found in the 1930s suggest that a labrador-sized biped lived around 243 million years ago, potentially making it the oldest known dinosaur.
Researchers measure how long it takes for DNA from bone to degrade, confirming that genetic information from dinosaurs could not last to the present day.
A small but vicious-toothed dinosaur may have dined mostly on plants, challenging the idea that fangs are hallmarks of carnivores.
The leading argument for dinosaurs being cold-blooded is overturned as a nearly identical bone structure is found in mammals.
Researchers discover a 70-million-year-old egg that belonged to a small, bird-like meat-eating dinosaur.
A 130 million-year-old winged dinosaur offers scientist the oldest evidence of iridescent feathers.
Fossilized fleas dating as far back as 165 million years provide clues of early flea evolution.
A 19th century geologist and minister investigates a prehistoric cave full of hyena bones in his native England.
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