Human animals have a simple, direct system: copulation and sperm delivery may lead to fertilization of an egg, if the timing is right. Once a sperm joins an egg, the resulting zygote gets implanted on ...

A new article in Ecological and Evolutionary Physiology examines how the immune system and reproduction interact in female mammals, especially during pregnancy, from mating to birth. Lauren E.

In most cooperatively breeding species, reproduction is monopolised by a subset of group members. However, in some species most or all individuals breed. The factors that affect reproductive success ...

This is a preview. Log in through your library . Abstract A generalized relationship of litter size to mammalian body size was predicted by a graph model. The model was used to generate hypotheses ...

The film "Reproduction Among Mammals" provides a detailed overview of the reproductive processes in mammals, particularly focusing on pigs. It describes the development of sperm in the testes, their ...