An international research team has determined that Troodon, a dinosaur very close to modern birds, was a warm-blooded animal (an endotherm), but had a reproductive system similar to that of modern ...

An ostrich inspects eggs in a nest. Like ostriches, the theropod dinosaur Troodon also laid eggs in communal nests. Deposit Photos ...

An international research team led by Goethe University Frankfurt, Germany, determined that Troodon, a dinosaur very close to modern birds, was a warm-blooded animal (an endotherm), but had a ...