Can math tell us about the gender differences in dinosaurs? A new study published a novel statistical analysis that estimates the degree of sexual variation found in fossils. "It's a whole new way of ...

Male lions typically have manes. Male peacocks have six-foot-long tail feathers. Female eagles and hawks can be about 30% bigger than males. But if you only had these animals' fossils to go off of, it ...

An international team has found that equations to determine the speed of a moving dinosaur based on prints in trackways may be inaccurate. In their study published in the journal Biology Letters, the ...

Of the many mysteries surrounding the life history of dinosaurs, one of the more enduring is how such gigantic organisms--some reaching 42 feet tall and weighing 90 tons--regulated their body ...

When you only have fossils to go off of, it's hard to tell which dinosaur traits, like size and ornamentation, are related to the animals' sex, and which traits are related to other things like age.

Male lions typically have manes. Male peacocks have six-foot-long tail feathers. Female eagles and hawks can be about 30% bigger than males. But if you only had these animals' fossils to go off of, it ...