African elephants may have magnificent ears, but on the savanna, they communicate over vast distances by picking up underground signals with their sensitive, fatty feet.

This is another installment of the PBS Deep Look series; this installment is adapted from the “It’s OK to be Smart” 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]