All animals have a life cycle, but they can be very varied and different. As part of their life cycle all animals, including humans who are animals too, have offspring which grow into adults. Humans ...

There are two basic life-cycle patterns among animals. Many animals have complex life cycles with two or more very distinct stages; metamorphosis is the usual term for the often-radical changes that ...

Scientists have pinpointed the 'pace' and 'shape' of life as the two key elements in animal life cycles that affect how different species get by in the world. The findings have important implications ...

Learn how scientists at the Smithsonian Conservation Biology Institute can help zoo caretakers learn about the reproductive status of their animals by using frozen poop samples.

Light pollution can also disrupt the reproduction of light-sensitive animals, besides obscuring the stars. French scientists have shown that light pollution can override the natural reproductive cycle ...

A tiny jellyfish, Turritopsis dohrnii, possesses a remarkable ability to reverse its life cycle, effectively defying biological aging. This 'immortal jellyfish' can revert to a polyp stage when ...

Scientists have discovered a marine animal that can reverse its aging process. The comb jelly, a jellyfish-like creature, can revert to a younger state when stressed. This discovery challenges ...