Despite the huge number of dinosaur fossils found, from bones to feathers, precious little exists in the fossil record to explain dinosaur defecation, urination, or copulation. Thankfully, all three ...

A reconstruction of the only fossilised dinosaur cloaca in existence may help illuminate how the prehistoric animals mated. The cloaca is an all-purpose opening on the body of many animals – including ...

(This article forms a part of the Science for All newsletter that takes the jargon out of science and puts the fun in! Subscribe now!) The transition from fins to limbs is one of the most important ...

How did digits evolve? While it is clear that they derive from genetic programs already present in fish, their precise origin remains a matter of debate. An international team led by the University of ...