New technologies are giving scientists global information on a wide variety of bird species.
On the morning of July 19, 2001, French scientist Alain Beauvilain and three Chadian colleagues discovered a fossil cranium in the dunes of the Sahara Desert.
Perhaps this organism had four legs. Perhaps it had flippers. Perhaps it was closely related to whales. Perhaps it has nothing to do with whales.
Miniature designs often require more foresight and delicate engineering than large designs. Examples are abundant in the living world.
In a previous article I described the evidence that cooption faces insurmountable mathematical challenges in explaining the origins of such complex molecular machines as the bacterial flagellum.