What are those photos in the header?

The first is a picture I took of a hairy-legged vampire bat (Diphylla ecaudata) from a cave in Mexico. The second picture shows a group of common vampires (Desmodus rotundus) at the Organization for Bat Conservation in Michigan. The photo is black and white because it was shot using infrared light. The bracelets on the arms … Continue reading What are those photos in the header?