Human feet would quickly freeze if exposed to snow and ice without proper gear, but dogs don't seem to mind the cold. Since the pads of their feet aren't protected by fur like the rest of their bodies, it would seem that they'd be especially susceptible to freezing—but they aren't. Japanese researchers recently discovered why.

Howell Thomas, senior paleontological preparator for the Natural History Museum of Los Angeles County, was skeptical when a woman claimed that she found a fossilized whale brain in San Luis Obispo County, California, nine years ago.

Which is more complex—a typical man walking across a street, or a blind man carrying a legless man across the street?