Structures that allow bears to cross highways do in fact work, allowing the animals to reach mates on the other side of the road, research finds.
A bird known for its gender-bending ways has yet again surprised researchers by breaking Europe's bird migration record. Continue reading →
Snowy owls have swooped down upon the eastern U.S. in greater numbers than at any time in at least 50 years.
Autumn brings with its chill in the air the sight of birds on the wing toward their winter homes.
The alpine swift glides and flaps throughout its entire migration across the Sahara Desert and sub-Saharan West Africa.
Humpback whales migrate for hundreds, even thousands, of kilometers along remarkably straight lines, but marine biologists are stumped as to how.
A female humpback whale has set a distance record -- migrating more than 6,000 miles.