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

Three striking new species of rock-dwelling monitor lizards have been formally described from the savannas of northeastern Queensland, revealing a previously unrecognized evolutionary lineage. The ...

Nile monitor lizards, an invasive and dangerous species, are spreading across Florida. Here's where they are and what to do ...

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

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 ...

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

India is home to a variety of interesting species of reptiles, but none are as exciting as the monitor lizards. These are ...

Nile monitor lizards, an invasive species, are making their presence known in Cape Coral as temperatures rise.

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.