Weekly Webcrawl: August 23, 2013

Photo via Thinkstock.

Photo via Thinkstock.

Male hump­back whales love to sing to their lady friends.

Whoa. Could a Mex­ican shrub cure heroin addiction?

Also in New Sci­en­tist this week, a series of arti­cles on health myths: from the paleo diet to juice cleanses and antiox­i­dants, looks like we’ve been swal­lowing a lot of snake oil lately.

Black holes in the South Atlantic?! 

UPDATE: Another awe­some courting adven­ture in the animal kingdom. What those boys will do to win over a babe.