A new study published in Science and led by Monash University biologists reveals that the energy cost of reproduction is far greater than previously believed. The research, led by Dr. Samuel C Ginther ...

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 ...

Animal breeding is an interest shared by farm owners and pet lovers, yet how to simply assess animals' reproductive functions remains a question. An Osaka Metropolitan University researcher provides a ...

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 ...

The mating game in the animal kingdom is nothing less than fascinating and somewhat weird. Some species pierce, clone, chew, or even fake their way through the mating process. To make survival ...

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 ...