The folks at WIRED recently asked Thor to return and answer more biology questions gleaned from Twitter, including such queries as how ticks latch on, how salt kills slugs, and whether or not ostriches actually bury their heads in the sand. The videos appear as part of the WIRED Tech Support series and have been viewed more than five million times. Click these links to watch Biology Support 3, Biology Support 2, or the original Biology Support 1.
