Reproduction in the animal world does not always follow a fixed script. In several species, individuals shift their ...

Quite an advantage in today’s world.

Biologists like to say that reproduction is the ultimate investment, a costly gamble that shapes everything from lifespan to ...

Animal reproduction and breeding encompasses the full spectrum of natural, assisted and genetic processes that underpin the perpetuation, improvement and conservation of species across diverse taxa.

OZARK, Mo. — An endangered Ozark hellbender raised by the Saint Louis Zoo has successfully reproduced within the Current River. This is a significant milestone in the recovery efforts of the species, ...

New research shows that epaulette sharks, often called “walking sharks,” can produce eggs without increasing their overall energy use.

These “walking sharks” can lay eggs without spending extra energy, rewriting what scientists thought they knew about reproduction.

No males needed — animals that reproduce through the mind-blowing process of parthenogenesis. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Animals possess circadian clocks, or 24 h oscillators, to regulate daily behavior. These typically take their cues from the periodic change of sunlight and darkness. However, many animals are also ...