In spite of its nationwide fame, the huemul (or south Andean deer) teetered on the brink of extinction just a few years ago.

Researchers including a Johns Hopkins University evolutionary biologist report they have analyzed a fossil of an extinct ...

Terror birds were apex predators some 12 million years ago in South America. A newly published discovery could be the largest yet.

A 12-million-year-old fossil has revealed what may be the largest known "terror bird" ever found, according to paleontologists.

The discovery of a Phorusrhacid fossil in Colombia — the northernmost find of its kind — indicates that these giant predatory ...

Arapaima are the largest freshwater fish in South America—and a keystone species in the Amazon River ecosystem.

The potato bug isn’t a true bug or a cricket, nor is it native to Jerusalem. It’s thought that Franciscan priests working on ...

The world is full of deadly animals and insects, with some of the most innocuous-looking ones that can actually be the most poisonous ...

Thaís Pansani examines the marks humans left on megafauna bones to determine when people arrived in South America and how ...

Its appearance in the Sacramento-San Joaquin Delta is the mussel’s first confirmed detection in North America, according to a ...

I n the first assessment of its kind, nearly all of the world’s tree species have been added to the IUCN Red List, which acts ...

While past terror bird fossils placed the meat-eating birds at 3 to 9 feet tall, new findings suggest that some were even ...