Nature does not reward politeness, and being a male or female doesn't change that rule either. Across the animal kingdom, the ...

Some animals can produce offspring from an unfertilized egg in an asexual reproduction process known as parthogenesis. When this is the standard process for a species it's said to be 'obligate' and ...

The cellular biology of reproduction is often depicted as an epic journey, in which millions of intrepid sperm fight to be the first to claim the ultimate prize: the chance to fertilize the egg, which ...

The gut-brain axis describes the two-way communication between the neurons that make up the central nervous system, which includes the brain, and the so-called peripheral nervous system, which ...

During mammalian reproduction, millions of sperm undertake a journey that only one will finish. This journey to fertilization has been commonly viewed as a race: a sea of sperm competing to get to the ...