Contagious diseases have shaped human history and they remain with us. Here's a look at some doozies, from ebola and dengue to the more recent Zika virus and CJD.

Here are some of the creepiest, crawliest, most terrifying places on the planet.

These finds have stumped scientists and captured imaginations.

With a little contemplation, many everyday human behaviors seem truly bizarre.

Studies show these parenting styles can get kids started on the right path in life.

Here's a look at the strangest medical cases that doctors have reported.