Habitat: Environment where a species is normally found.

Herbivore: An animal that feeds on plants.

Hierarchy: The social structure of a wolf pack, based on positions of dominance and subordinance held by the pack members.

Home range: The area normally traveled by an individual during its life span.

Hybrid: Mixed breed that occurs when two different subspecies of animals mate and bear young.

Inbred: The result of inbreeding, or reproduction by closely related species. Such as a mother and son breeding.

Incisors: Long, sharp front teeth

Instincts: Things that an animal is born knowing how to do.

Interdependence: When two or more things depend on each other.

Keystone species: A species that plays a fundamental role in maintaining the plants and animals in an ecosystem
leader: the one who leads the group/ pack.

Litter: A group of young born at the same time by one mother.

Mammal: An animal that has a backbone, breathe's air, feeds its young with mother's milk, and regulates its own body temperature.

Mating season: The time of year during which animals come together to produce young.

Migration: The regular movement of animals from one place to anothers, whether for reasons of climate, reproduction, or food.

Milk teeth: The first, small teeth of a baby animal that will later fall out and be replaced by larger permanent teeth.

Nocturnal: Active at night

Nurse: To drink mother's milk

Nutrient: A nourishing substance.

'O through R'

Omega: Lowest ranking member in the social order of a wolf pack.

Omnivore: A creature that eats both plants and animals.

Order: A group of related animals or plants.

Pack: The name given to a group of hunting animals such as wild dogs or wolves.

Parasite: Tiny creatures, such as ticks or mites, that feed on larger animals, sucking their blood.

Pelage: The entire coat of hair or fur, including the soft, furry undercoat as well as the coarse guard hairs, on a mammal.

Poaching: Illegal taking of wildlife.

Predation: The act of an animal capturing and eating other animals.

Predator: An animal that hunts and kills other animals.

Prey: An animal hunted by other animals for food.

Rabies: Disease that affects an animal's brain and causes the animal to wander and bit at other animals. It is spread by the bite of an infected animal.

Range: Geographical area in which an animal can be found
recovery: natural or assisted restoration of a population to specified levels for minimum number of consecutive years to a designated area within its original range.

Regurgitate: Bring up food from the stomach that has not been digested. Some animals regurgitate food for their young, not always because they are sick.

Rehabilitate: To bring back to good condition.

Reintroduction: Act of bringing individuals of a certain species back into a designated area within the species' original range, but from which it was extirpated or nearly eliminated. The purpose of reintroduction is to establish a new population in the wild.

Rendezvous site: A place where pack members meet between hunting trips and where the pack moves when the pups are old enough to move out of the den.

Resources: A supply of environmental benefits, like water, or sunlight.

Scat: Fecal matter or feces.

Scent-marking: Act of marking an area with body odor, scent from a gland, or urine and scat. This technique is used by wolves to communicate with other wolves and animals. For example, scent marks tell other wolves the locations of a pack's boundaries.

Scientific name: A name, usually from the Latin language, that scientists give to a plant or an animal.

Social: Preferring the company of other creatures rather than being alone. Animals that are social like to be around each other and usually gather in a group.

Species: Distinct kinds of individual plants or animals that have common traits and share a common name.

Stalk: To follow prey stealthily and quietly.

Submission: Showing weakness or subordinance.

Submit: To let another animal boss or lead. Submissive wolves lower their tails, lay their ears back and roll over on their back around dominant wolves.

Subordinate: A less important, lower ranking member of a group.

Subspecies: A smaller group of plants or animals within a particular species.

Territory: The area occupied by a single animals or group of animals, to the exclusion of others of the same species; often defended by aggressive displays.

Territorial: To consider an area of land as your own and to keep strange members of your species out by using warnings or fighting, if needed. Animals such as deer that are not territorial are said to have home ranges. This means that they have certain areas where they live but they don't defend them.

Threatened: Animals or plants that are in danger of extinction in a part of their range.

Tracks: Footprints, in this case left by the foot of an animal.

Tundra: Flat land in the Arctic where no trees grow.

Underfur: Pale, short fine hairs in the coat that help keep the animal warm.

Ungulate: A hoofed mammal, such as deer, elk, mountain goats, bighorn sheep, moose, antelope, caribou and bison.

Vertebrate: Animal with a backbone.

Vulnerable: Capable of being hurt or damaged.

Wolfers: men who were hired to kill wolves by people who didn't want any wolves around.

Wolves: Canid species, that closley resemble the dog. Wild and once hunted, most species are now extinct or endangered.