Get the lowdown on rare creatures

Learn more about endangered species and hear exactly what they sound like by visiting a special Web site established by the Center for Biological Diversity.

At RareEarthtones, viewers will not only get to hear the screeches, hoots, squawks and roars of some of the world’s rarest animals, they’ll also get to take the sounds with them. The Web page allows users to download ringtones, cell phone wallpapers and interesting facts about imperiled wildlife.

The site features 70 rare and endangered animals, including blue-throated macaws, northern goshawks, California red-legged frogs and polar bears. All of the ringtones are free! The most downloaded tones are those of the killer whale and Mexican gray wolf. Give the Web site a look-see, but check back regularly; the organization plans to add new sounds each month throughout 2008.

The Center for Biological Diversity is a nonprofit organization dedicated to the protection of endangered species and wild places.