Copy of `Yellowstone In Depth - Yellowstone info`

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Yellowstone In Depth - Yellowstone info
Category: Animals and Nature > Yellowstone park
Date & country: 25/04/2011, US
Words: 6


Bone marrow
soft tissue in the hollow interior of bones. In adults, bone marrow in large bones produces new blood cells. Bone marrow composition is one way that biologists can study what the health of an animal was when it died.

Ecosystem
A dynamic complex of plant, animal, and micro-organism communities and their non-living environment interacting as a functional unit.

GPS
standing for Global Positioning System, GPS is a network of Earth orbiting satellites that transmit precise radio signals, enabling a GPS receiver to determine location, speed and direction.

Predator
An animal that kills other animals as a source of food.

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