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 ...

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 ...

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 ...

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 ...