The reptile was named Crocodylus lucivenator, meaning “Lucy’s hunter.” The name references Lucy, one of the most famous early human ancestors ever discovered. Lucy lived about 3.2 million years ago ...

Scientists have identified a 3.3-million-year-old giant prehistoric monster crocodile species that likely hunted early human ...

Unlike the green iguanas that have become a familiar, if unwelcome, sight in the region, Nile monitors are aggressive ...

"You cannot wait until an invasive species has demonstrated its impact upon the ecosystem. If you do, then it's too late." ...

A large, aggressive lizard species is establishing breeding populations across South Florida, and it’s nothing like the iguanas residents are used to seeing on seawalls or in backyard mango trees.

Meet Lucy's hunter, a massive, horned crocodile that likely terrorized early human ancestors in ancient Ethiopia.

While most wild animals avoid humans, a small number of species are responsible for the majority of fatal attacks each year. Some are predators by nature, while others bite or kill out of defense, ...

More than 3 million years ago, when our ancient ancestors embodied by the iconic Lucy were roaming the African landscape, they would have feared a big, bad crocodile with a prominent lump on its head, ...

Another giant reptile is clawing its way toward disrupting the South Florida ecosystem as an invasive species. The Nile monitor -- a semi-aquatic lizard that can grow up to 6 feet and is equipped with ...

While the blue whale holds the title as both the largest and heaviest animal ever known, other whale species can weigh between 200,000 and 300,000 pounds, with hearts that weigh as much as a small ...

Powerful, carnivorous Nile monitor lizards are expanding through South Florida's canal systems, with sightings climbing sharply, according to wildlife officials.