Parker has had a long and distinguished career as an evolutionary biologist, with much of her work focused on avian populations in the Galápagos Islands.

Parker has had a long and distinguished career as an evolutionary biologist, with much of her work focused on avian populations in the Galápagos Islands.
Parker has had a long and distinguished career as an evolutionary biologist, with much of her work focused on avian populations in the Galápagos Islands.
Parker has had a long and distinguished career as an evolutionary biologist, with much of her work focused on avian populations in the Galápagos Islands.
Walker studies Poecilia mexicana, a species of live-bearing fish that have adapted to surviving in hydrogen sulfide-abundant waters, in the Tobler Lab.