Red tide is caused by a harmful algae bloom. It can bring respiratory problems and even fish kills in high concentrations.

Chesapeake Channa are — and let’s describe them as nicely as we can — a whole lot uglier with a protruding lower jaw, lots of ...

Central Park is facing a silent invasion as various non-native species establish themselves within its boundaries. From the ...

The natural world holds plenty of secrets. Researchers stunned after netting 'vanished' species 80 years after last sighting: ...