He IS batman:

It's been bats all the way down. Medellín has been the author or co-author of more than 50 scientific papers in international journals, as well as 15 books and book chapters on bat ecology and conservation. And his work is taking on a new significance today, as bats' story has shifted toward endangerment and extinction. In all that, Medellín finds himself navigating two different, but related roles: data-driven scientist and emotion-driven advocate. "You never know what's going to happen in the future," Medellín points out. "If we'd had a stronger effort 10 years ago on bats, we would have shown the effects of the white nose syndrome." We would have had a greater chance of understanding the illness that is proving catastrophic for so many bat species -- species that, with a diet consisting mostly of insects, play a crucial role in maintaining the ecological balances we humans have come to rely on.