Animals produce offspring by two principal modes of reproduction. Vivipary (or viviparity) means producing live young — readily recognized as living because newly produced offspring wriggle, squirm, ...

xplores the various methods of animal reproduction, highlighting the dependency of young animals on their parents, particularly in mammals, birds, and amphibians. It explains both asexual reproduction ...

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 ...