From 9-foot tall ostriches to albatrosses with gargantuan wingspans, here are some of the biggest birds in the world.

Have you ever wondered how city life affects animals like frogs? A new study reveals that urban Túngara frog tadpoles develop ...

Have you ever wondered how city life affects animals like frogs? A new study reveals that urban Túngara frog tadpoles develop ...

A boomerang carved from a mammoth tusk is one of the oldest in the world, and it may be even older than archaeologists ...

Thylacines — marsupials known as Tasmanian tigers — were declared extinct decades ago, but efforts to find one in the wild ...

Falcons are a class of birds best known for their speed, vision and hunting prowess. Here’s the story of perhaps the most ...

Researchers revisited a crescent-shaped, mammoth tusk artifact discovered in Poland and estimated it’s around 40,000 years ...

Longleat's Amur tigers have been cooling off with a swim as temperatures soared. The big cats, residents of Longleat Safari Park, were pictured enjoying a dip in their outdoor pool during the recent ...

#4 Javan Tiger - Extinct 2008 The Javan tiger, a specific population known as Panthera tigris sondaica, was once commonly found on the Indonesian island of Java, particularly during the 1800s.

The tiger, identified as a panthera tigris, an endangered species according to the World Wildlife organization, is reportedly male and two years old.

Though once thriving in the U.S., jaguars now call the landscapes of Mexico their northernmost territory. Unfortunately, residents continue to view them as a threat to livestock. Since 2007, a U.S ...