World of Darkness, the Bronx Zoo’s “groundbreaking” shadowy attraction showcasing more than two dozen rare and unusual nocturnal animals, is back after a 16-year hiatus.

Feeding wild elephants might seem kind, but a new study by researchers at the University of California San Diego warns that it can lead to serious harm.

World of Darkness, the Bronx Zoo’s “groundbreaking” shadowy attraction showcasing more than two dozen rare and unusual nocturnal animals, is back after a 16-year hiatus.

Many animals are most active at dusk and dawn. Others are primarily nocturnal. That first break of sunlight finds the overlap between late-moving nocturnal animals and those that require daylight.

Better control of nocturnal blood pressure and improved circadian rhythm seen with bedtime versus daytime dosing.

And the concept is the same: to use a reverse light cycle, giving visitors a peek into the lives of nocturnal animals that are generally active while humans sleep.

Thousands of fans have flocked to a Thailand zoo to celebrate the first birthday of Moo Deng, the baby pygmy hippo that's become a social media sensation.

A nonprofit called Land of Lovies is helping kids who lost their stuffed animals during the Hill Country floods get them back.

Texas floods devastate, claiming dozens of lives and impacting wildlife. Learn how you can help victims, human and animal, navigate the crisis.

Austin Pets Alive! is assisting Kerrville Pets Alive! by taking in some of that shelter's animals so it can help animals affected by the Kerr County floods.

Ben Radcliffe has been cast in 'The Face Of Horror' opposite Jonah Hauer-King, Kristine Froseth, Ellie Bamber and Leo Suter.

How researchers measure the logical reasoning of monkeys, pigeons, rats, fish and wasps shapes how they understand mental processes in animals − and in people.