Researchers have developed a method that shows how the nervous system and sensory organs are formed in an embryo. By labeling stem cells with a genetic 'barcode', they have been able to follow the ...

Researchers at Karolinska Institutet have developed a method that shows how the nervous system and sensory organs are formed ...

A CT scan of an ancient marine reptile that was entombed while pregnant has revealed a huge surprise — there were two fetuses inside her fossilized remains. "Twins! She has another baby," Judith Pardo ...