To protect herself and her eggs, female webspinners shoot super-fine silk from their front feet. They weave the strands to build a shelter that serves as a tent, umbrella and invisibility cloak. But shooting silk from her feet requires her to moonwalk to get around.

This is another installment of the PBS Deep Look series. If no film or link appears in this email, go to the blog to view it by clicking on the blog title above. If the film stops & starts in an annoying manner, press pause (lower left double bars ||) to let it buffer and get ahead of you.   [Chuck Almdale]