The public is urged to help reduce the spread of toxoplasmosis through responsible cat ownership by spaying or neutering cats, keeping cats indoors and reporting any illegal dumping of cats.

Olowalu Water Co. was accused of taking more water than it was allowed from a stream, a rule that's aimed at protecting fragile natural ecosystems.

It was the second large-scale clean-up effort inside the national monument around the Northwestern Hawaiian Islands.

A man's dog was caught on camera harassing a Hawaiian monk seal on the Big Island. The owner now faces charges from both state and federal agencies.

A settlement conference on Tuesday could determine the fate of a U.S. Clean Air Act suit against Howard Hughes Corp.

Grand Wailea has agreed to take protective measures, including dimming and adjusting its lights.

Members of the hui say that planning against Hawaii's encroaching shorelines has been "piecemeal" and "reactionary" so far.

Some experts say giant trevally, a culturally and ecologically important fish, has declined as its popularity has soared online, but better data is needed.

A team of biologists is now trying to breed ‘alula so they can reintroduce the plant before it's too late.

Researchers are learning more about how coral reef halos are formed, and that they hold significant promise for conservation.