Climate change appears to be causing a coral decline in the Great Barrier Reef.
This landmark American tree is poised to return to eastern woodlands.
China is planting an enormous swath of forest to keep dust storms at bay.
For marine life, climate change means more than warming.
An experiment uncovers a major killer of this popular sport fish in San Francisco Bay.
Genetic details help sort out the bear family tree.
The federal government is protecting a small group of Alaskan beluga whales before it gets any smaller.
Divers in Australian reefs tallied hundreds of species new to science.
Roads, buildings, and other new development alter aquatic life in local streams.
A new survey doubles the existing number of western lowland gorillas.