A castrated male mammal: Teddy, aka Puppers. A sign at a nearby dog park specifies that only neutered (i.e., castrated) dogs may enter. “Intact” dogs are not welcome. After all, intact dogs might be ...

Blocking reproduction increases lifespan in both males and females of many different species, a new international University of Otago—Ōtākou Whakaihu Waka-led study has found. Using data from mammals ...

Why do lifespans vary across different species? A female elephant can live up to 80 years, but usually only has a few calves during her lifetime. A mouse, on the other hand, lives for a few years at ...

Whether it is the fountain of youth or the elixir of life, men have travelled the world looking for the key to increasing their longevity. They should be looking a bit closer to home, according to one ...