One good turn: Birds swap energy-sapping lead role

Migrating birds 'share the pain' of the arduous task of leading a v-formation, so that they can then take turns saving energy by following in another bird's wake, a new study shows.

The night life: Why we need bats all the time

The sight of bats hanging upside down in creepy caves or fleeing in fluttery flocks from their subterranean haunts at dusk like "bats out of hell" may spook even the most rational, otherwise unflappable observer.

Halloween spending hikes reveal our fascination with the macabre

In the gloom of the economy, with scary unemployment figures, you might expect consumers to be hiding from Halloween in their darkened homes with the porch lights off. But a recent National Retail Federation survey shows ...

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