When the environment changes, why do some species survive and others vanish? We seek answers to this question in the past and present traces left by the four closely related members of the charismatic Callipepla quail.
We will use DNA extracted from museum specimens of four bird species that went extinct in North America in the Twentieth Century to determine the sizes and distributions of their populations leading up to their final days.
Few species communicate in a way remotely as complex as humans. Gelada monkeys are an exception. Geladas ‘talk’ to each other with complex sequences of sounds, but the function of these melodies is a mystery.