Nils Aldridge (left) of the New York Museum of Nature and Glenn Gehr of the Department of Evolution at the State University of New York at New Paltz mark the 201st birthday of Charles Darwin

Nils Aldridge (left) of the New York Museum of Nature and Glenn Gehr of the Department of Evolution at the State University of New York at New Paltz mark the 201st birthday of Charles Darwin

Niles Eldredge, left, the American Museum of Natural History paleontologist behind the ‘Darwin’ exhibition that has been traveling around the world, stands behind a Darwin Day cake with Glenn Geher, SUNY New Paltz’s director of evolutionary studies. Photo provided