The porcine reproductive system relies on tightly regulated steroid hormone metabolism to coordinate gonadal development, gametogenesis and accessory gland function. Within the testis and ovaries, ...

Alternative reproductive tactics (ARTs) encompass the suite of discrete morphological, behavioural and physiological strategies that individuals within the same sex adopt to maximise reproductive ...

Kangaroos are the iconic Australian animals that are famous for their ability to carry their young around in a pouch on their front. However, they actually have one of the most unusual reproductive ...

Fossils from some of the oldest-known animals on Earth, dating from 574 million years ago (Ediacaran period), suggest that cloning, not competition, dominated the Ediacaran seas, slowing evolution ...