Scientists have been warning about a species of lizard the size of a dog for years, and now they are spreading beyond Florida ...

Six critically endangered Mekong giant catfish—one of the largest and rarest freshwater fish in the world—were caught and ...

Six giant Mekong catfish were caught in the span of a week in Cambodia recently, suggesting a potential revival of the critically endangered species.

Also today: How California sees the world, and itself; tube fares will rise in London next year.

Plunging into a large lake in the East African country of Malawi, divers scanned the rocky coast for aquatic life. Some “large”-eyed creatures caught their attention — and turned out to be two new ...