Follow Yosemite National Park's Bears Online

collar – n. a band of leather, plastic, etc., worn around an animal's neck

GPS – n. a radio system that uses signals from satellites to tell you where you are and to give you directions to other places

track – v. to follow or watch the path of (something)

mate – v. of animals : to have sexual activity in order to produce young

conserve – v. to keep (something) safe or from being damaged or destroyed