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

"They're very wild, they're very active. They don't make good pets at all. They don't calm down." ...

"It's like catching a tornado. Swim, burrow, they climb trees, they are like modern day velociraptors." ...

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

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

This video focuses on the feeding of a large monitor lizard kept in captivity. Monitor lizards are powerful reptiles with strong jaws and sharp teeth adapted for consuming whole prey. Observing ...

Nile monitor lizards are dangerous, invasive predators in Florida. Here's where they are in the state and what to do if you ...

Bangkok, nine o'clock in the morning. The tropical heat is slowly settling over Thailand's capital like a damp towel.

Florida residents are no strangers to invasive reptiles. But this 6-foot-long African lizard poses an especially big threat.

Hundreds of Asian monitor lizards live in the Thai capital’s Lumphini Park and early morning is one of the best times to see them.

There's been a new sighting of the water monitor lizard that's been wandering around parts of Massachusetts and Connecticut. The five-foot-long lizard named Goose crawled out of a second-floor window ...