New numbers suggest that bees may be bouncing back from yearly declines, but experts remain concerned about their future.

In the winter of 2006, millions of bees vanished from their hives without a trace. The epidemic set researchers scrambling to discover why honeybees were dying in record numbers -- and to stop the epidemic in its tracks before it spread further.

Scientist Tyrone Hayes is studying the how agricultural chemicals, including fertilizers and pesticides, are affecting the health of frogs.

In 2006, millions of bees vanished from their hives without a trace. Watch the full episode online now.

Honeybees pollinate about one-third of crop species in the U.S. If bee colonies were so severely affected by CCD that pollination stopped, could we lose these crops forever?

"Extraordinary Birds" highlights the intimate links that people have forged with birds. In many instances, birds are more than just symbols -- they are companions.

Locusts look like grasshoppers and are in fact a close relative. But unlike grasshoppers, locusts undergo a remarkable change when their populations grow.