A quarry site in Nevada carries the evolutionary history of a population of stickleback fish that resided there when it was a freshwater lake.
Corn was originally bred from the teosinte plant by native Mexican farmers. The morphologies of modern-day corn and teosinte plants are compared to illustrate how artificial selection can bring about dramatic changes in plants.
The many forms of dogs that exist today were all created through selective breeding from the dog's ancestor, the wolf. In a span of less than 10,000 years, breeders have changed traits and body shapes of dogs by artificial selection-for example, emphasizing different aspects of hunting and...
Male courtship dances in two fruit fly species show that the wing spots play a prominent role.
These are some of the animal species Charles Darwin would have seen when he visited the Galapagos Islands.
At the end of the ice age, the retreating ice sheet created many new lakes, some of which were colonized by sticklebacks.
The identity of the stickleback fish stumps the contestants on the game show.