They have been present in Hawaii for so long, in one form or another, that these hogs are considered the oldest non-native animal species on the islands. Their presence, however, has become a problem.

This facility helps visitors learn about ... Open Ocean exhibit houses hundreds of fish, rays and sharks, and features a 53-foot-long acrylic tunnel that allows you to observe the animals swimming ...

Deep-sea mining could unleash clouds of debris that threaten a mysterious, vital ecosystem we barely understand.

Coral reefs in Honolulu and other coastal areas are undergoing what experts say is the world's worst coral bleaching event.