Scientists believe that Troodon produced a pair of eggs at periodic intervals and then incubated them in earth nests, sometimes sitting on them and warming them with body heat. Such behavior ...

It's the first time a kangaroo embryo has been produced through the injection of a single sperm cell into an egg. Lead researcher Dr Andres Gambini said the "groundbreaking achievement" could ...

A 70-million-year-old dinosaur embryo, perfectly preserved inside a fossilised egg, has been uncovered in Missouri. The find provides fresh insights into dinosaur development and their link to ...