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

Octopuses are famous for their problem‑solving brains and shape‑shifting bodies, yet their lives end in a way that looks more ...

Vets will have to publish price lists for common treatments and disclose if they are independent or part of a chain under ...

Vets will have to publish price lists for common treatments and disclose if they are independent or part of a chain under ...

Mating calls and rituals can be intercepted, or drowned out, by invasive species. Scientists are just starting to understand ...

“Under environmental stress, many species will choose between survival and reproduction, but the epaulette shark might be ...

Most pet owners know the benefits of spaying female dogs and cats. Surgical removal of the ovaries and uterus not only ...

A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to ...

Many mammal populations in European and North American zoos are aging – a trend that jeopardizes the long-term viability of so-called reserve populations and, with it, a core mission of modern zoos in ...

Believe it or not, but ducks have a reputation for the unexpected: bizarre and intricate mating anatomy. According to ...

Researchers documented the activity of neurons that shape directional navigation as bats explored a remote island off the ...

Epaulette sharks can reproduce without any measurable increase in energy use, stunning researchers who expected egg-laying to ...