fish

This page shows an interesting experiment carried out, on two groups of fishes, by the Berkeley University. It points out the difference in the evolution of the two groups with and without predators.

This site is a collaboration of the Boston Museum of Science and the St. Louis Science Center.

Membership is free and the visitors can create a virtual fish, and release it in the virtual aquarium of either of the two science centers.

Once the virtual fish is created and released in the virtual aquarium, it can be viewed interacting with other virtual fishes in the fish tank.