It's possible the Vikings thought the afterlife was a mirrored version of the real world.
In 7000 B.C., a kiln-like pit became the site of the earliest know human cremation in the Near East.
These strange, long-necked Triassic beasts were able to coexist because they chowed down on different prey.
Ramps built on some ancient Greek temples were likely placed there to aid the disabled, elderly, pregnant and very young.
A big earthquake at Ridgecrest could trigger the Garlock fault, which would in turn trigger the San Andreas.
A DNA analysis of 807 Polynesians and Native Americans suggests that their ancestors were bedfellows long ago.