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 ...

A new study shows there is a high cost of parenthood, quantifying the 10% “longevity tax” on reproduction. Consequently, mammals that have fewer or no offspring tend to live longer. But why does ...

For some animals, reproduction comes at the ultimate cost—their own lives. While this may seem extreme, it's a natural strategy to maximize reproductive success. These species invest everything into ...

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, ...

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.

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

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.