All wolves currently living in Yellowstone were born here. Discover how this new generation of wolves is transforming our understanding of the natural world. Duration: 9 minutes. Episode 4: The Generation of the Wolf - Yellowstone National Park (U.S. National Park Service) Rendezvous – An area within a wolf pack's territory where pups are temporarily left when they are too young to join the pack in hunting. Telemetry – A technology that involves wireless transmission of signals. In Yellowstone, biologists use telemetry as a tool to study wolf movement and behavior. Some wolves have radio collars that transmit a signal at a particular frequency. By tuning a receiver to the frequency of a particular wolf’s radio collar and then aiming their receiver’s antenna in different directions, biologists can locate collared wolves.