Hopi Hoekstra, Alexander Agassiz professor of zoology and curator of mammals in the Museum of Comparative Zoology at Harvard University, discussed scientist Charles Darwin, what he knew and what he didn’t know at the Earth and Space Sciences Building on Friday, Feb. 9, as part of the Living World Lecture Series of Science Open Nights.

The “whispering” bats are a diverse population that eat a variety of different foods. But what led to this amount of diversity in their diet?