“The Flintstones” may now be considered historical fiction. A new paper published in the journal Current Biology suggests that human ancestors lived with dinosaurs for a short time before the ...

Paleontologists have long wrestled with the challenge of identifying the genders of dinosaurs from the fossils they leave behind. Once the soft tissues like reproductive organs have decayed away, ...

Paleontologists spotted injuries on the tails of duck-billed dinosaur fossils that might have occurred during mating.

A new study offers the most intriguing clue yet for determining the sex of certain dinosaurs: injuries that may have resulted from mating. For decades, paleontologists have struggled to tell male from ...

SALT LAKE CITY — New research out of Northern Ireland reveals there may be a distinct clue to determine the actual gender of dinosaurs. It's not pretty. Paleontologists have been trying to identify ...