Literal battle of the sexes: These mating snakes have antagonistic genitals.

Ten arrows in less than five seconds: reinventing forgotten archery.

Scuba diving the tectonic boundary between the North American and Eurasian plates.

Ten early versions of famous pop-culture works.

All of the X-Men in one handy infographic.

The day the Marines met their robotic mule.

ICYMI, Tuesday’s links are here.