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 ...

In December, the animal loses almost all motivation to leave its shelter for feeding and stays in the inner enclosure for longer periods of time.

Cutting off reproduction — from birth control to castration — consistently adds years to life across species, even humans.

Lucinda Aulsebrook does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...