I have a new post up at my Psychology Today blog, Animal Minds. It’s all about the amazing whiskers of harbor seals. Seals can detect the trails left in water by fish for up to half a minute after the fish is gone! They can also discriminate the size and shape of an underwater object, just by its wake. We have Henry, the trained harbor seal at the Marine Science Center at the University of Rostock, Germany to thank for this knowledge. Thank you for your contribution to science, Henry! Read the whole story here: Whiskers Seal the Deal .