Huge numbers of blackchin tilapia, a fish native to west Africa, are wreaking havoc among Thailand’s river ecosystems.

A hardy aquarium fish prized for its golden hue, the ornamental Flowerhorn cichlid (Amphilophus spp.) has become a problem for the residents of San Pablo City, Laguna: It is increasingly taking on an ...

The short answer is that there’s nothing to disclose. But that doesn’t mean we won’t make contact with extraterrestrial life ...