One of the most important features of animals is their color. Whether it be to attract a mate or hide from a predator, color is involved in most aspects of animal behavior and influences how well they survive and pass on their genes to future generations. Once thought impossible, scientists can now tell what colors many extinct animals may have been.
If you think sharing your junk food with begging birds doesn't affect biodiversity this study may make you think again (and keep your fries to yourself.)
The second hour of "Dogs That Changed the World" details the explosion of the basic working dog types into the roughly 400 breeds known today; explores concerns about today’s competitive breeding and its effect on dogs’ health and well-being; and outlines dogs’ potential role in medical care for human beings.