40-year-old Els reportedly said the animal was like a 'son' to him but the hippo would eventually be the cause of his death. In 2011 reports confirmed that the hippo dragged Els into the water and ...

A Ramona Wildlife Center pygmy hippo that was rescued more than two decades ago broke a world record this weekend by becoming ...

The Texas Senate has approved a bill that defines sex as either male or female based on biological reproductive systems, ...

Stanford Medicine researchers discover mechanisms of sex-linked genetic mutation giving rise to ginger felines.

Here's why a cycling safari is the best way to see the Big Five, and it includes riding on "elephant highways." ...

Born in December, the hippo was named Mikolas and joined two female and one male pygmy hippos in the Dvur Kralove Zoo about 75 miles east of Prague, said Helena Hubackova, a spokeswoman for the park.

Scientists have uncovered the genetic underpinnings of one of the ocean's most bizarre animals: a branching marine worm named Ramisyllis kingghidorahi that lives inside sea sponges and reproduces in a ...

Earlier this year, four Asiatic lion cubs were born at the zoo. At present, a male and a female cub have survived and are ...

A grown pygmy hippopotamus can weigh between 400 to 600 pounds, while larger, fully-grown hippos can weigh up to 9,920 pounds and 3,000 pounds, depending if they’re male or female. The zoo ...