Business Insider India5y
A rattlesnake emits its famous warning signal without anything at all rattling around inside its tail. Here's how it works.
[Audio of rattlesnake rattle.] The warning of a rattlesnake. Now, just because a rattlesnake's tail sounds like a built-in maraca doesn't mean it works like one. There are no beads rattling about ...
Center for Biological Diversity15y
NATURAL HISTORY
DESCRIPTION: The black-tailed prairie dog is a daytime-active, medium-sized rodent, ranging in length from 12 to 15 inches, including a three- to four-inch tail. Its weight ranges from 1.5 to three ...