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alfalfa — a plant widely grown as animal forage

alleged — represented as existing, but not yet proved

antelope — slender, long-horned hoofed mammals that live in Africa and Asia. Examples are impalas and hartebeests.

catastrophe — a sudden and terrible calamity

controversial — subject to dispute or disagreement

contempt — open disrespect

demographic — having to do with the study of the vital statistics of a population, such as size, distribution, density, and growth.

ecological — having to do with the relationships between organisms and their environments

ecosystem — a community of species and their environment, regarded as one unit

extinction — the complete loss of a species

extirpation — the complete destruction or elimination of something

fawn — a young pronghorn, under 1 year old

genetic – relating to the units (genes) that determine t he basic traits of an organism

habitat — the environment in which a species lives or grows

hypothesis — a scientific theory; hypotheses (pl.)

interaction — contact between two or more species

immobilize — to make unable to move

migrate — to change location from one region to another, usually seasonally; migration (n.)

net gunning — a method to physically immobilize an animal using a weighted net dropped from the air

overgraze — to graze excessively

predator — an animal that survives by killing and eating other animals

pronghorn ( Antilocapra americana) — a small deer-like mammal that stands around 3 feet high at the shoulder and has small forked horns

range — open land in which ungulates are able to live and graze

rebuttal — an opposing argument

sheath — a close fitting cover

SOS — letters representing an international distress signal

summation — a concluding statement

tranquilize — to make or become calm, usually with medication

ungulate — a mammal with hooves, such as the bison, cow, or pronghorn

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