As early as their 20s, people can experience a decline in the efficiency of their sleep receptors.
Scientists discover the switch that turns on the aging process.
Pirate fish are not only ravenous predators, they appear to be masters of deception.
Yes, kids under eleven have been known to regenerate fingertips. Learn more on this Moment of Science.
Do fish have olfactory senses? How do they smell without a "nose?" Find out on this Moment of Science.