Glossary

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Rabies - 

A viral disease that affects the nervous system in mammals. It can lead to paralysis and death. RabiesA viral disease that affects the nervous system in mammals. It can lead to paralysis and death. Rabies is spread from the bite of one mammal to another. is spread from the bite of one mammalA warm-blooded animal with a backbone that breathes air, and has at least some hair at some point during its life. The females have glands that produce milk, which they feed to their young. to another.

Rain forest - 

A woodland that receives more than 100 inches (250 centimeters) of rain each year. Tropical rain forests are known for warm temperatures, and have evergreen trees that form a dense, continuous canopyThe second-highest, spreading, branchy layer of trees in a rain forest.. Temperate rain forests have evergreen and deciduousTrees that lose their leaves each year. trees, with temperatures that vary greatly with the season.

Range - 

In biologyThe study of life and living things. Biology deals with how plants and animals live and grow, how they are made, and where they are found., the total area in which an individual or speciesA group of individuals that have many of the same characteristics, and are different from all other animals in some important way. Hamsters and mice are two different species of rodent. can be found.

Raptor - 

A birdAn animal that has wings and is covered with feathers. Birds have a backbone, are warm-blooded, produce young from eggs, and walk on their two legs. Most can fly. that hunts and eats meat; also known as bird of preyA bird that hunts and eats meat; also known as a raptor. Birds of prey use their talons to catch their food and their strong, curved beaks for tearing food into bite-sized pieces. Falcons, hawks, eagles, and owls are birds of prey.. Raptors use their talonsThe claws of a bird of prey. to catch their food and their strong, curved beaks for tearing food into bite-sized pieces. Falcons, hawks, eagles, and owls are raptors.

Rare - 

A speciesA group of individuals that have many of the same characteristics, and are different from all other animals in some important way. Hamsters and mice are two different species of rodent. that has small populations, so that even a slight decrease in numbers could cause extinction.

Recycle - 

To reuse an item instead of just throwing it away. For example, soda cans can be recycled to make new soda cans.

Regenerate - 

Formed or created again.

Regurgitate - 

To bring up food that is partly digested. Many birdAn animal that has wings and is covered with feathers. Birds have a backbone, are warm-blooded, produce young from eggs, and walk on their two legs. Most can fly. speciesA group of individuals that have many of the same characteristics, and are different from all other animals in some important way. Hamsters and mice are two different species of rodent. feed their young with food they have swallowed and then regurgitated. The regurgitated food is easier for the chick to swallow than whole food would be.

Rehabilitate - 

To care for an animalAny living thing that is not a plant. Most animals can move about freely. All use plants or other animals as food. All have sensory organs. until it is in good health again and can be released to its natural habitatWhere an animal or plant normally lives and grows..

Reintroduce - 

To release a captive animalAny living thing that is not a plant. Most animals can move about freely. All use plants or other animals as food. All have sensory organs. back into its native habitatWhere an animal or plant normally lives and grows. in the wild.

Renewable - 

Resources that have the capacity to replenish themselves within a human's lifespan.

Repatriate - 

To send an animalAny living thing that is not a plant. Most animals can move about freely. All use plants or other animals as food. All have sensory organs. back into the same wild area its ancestors came from.

Reproduce - 

To have offspring or babies.

Reproductive potential - 

The ability of an animalAny living thing that is not a plant. Most animals can move about freely. All use plants or other animals as food. All have sensory organs. to reproduceTo have offspring or babies. given ideal conditions, such as good health and a safe environmentEverything that surrounds an animal or other living thing. For example, a pond is a frog's environment..

Reptile - 

A cold-bloodedAn animal whose body temperature changes with the temperature of the air or water around it, as a turtle or fish., air-breathing animalAny living thing that is not a plant. Most animals can move about freely. All use plants or other animals as food. All have sensory organs. that has a backboneThe column of bones (spine) in the back of many animals. It supports the body. An animal with a backbone is called a vertebrate.. Reptiles have dry, scaly skin. They move by either creeping on short legs or crawling on their bellies. Most reproduceTo have offspring or babies. by laying eggs.

Reticulated - 

This word means looks like a net, and is used to describe the pattern on the skin of some animals. For example, there are reticulatedThis word means looks like a net, and is used to describe the pattern on the skin of some animals. For example, there are reticulated giraffes and reticulated pythons. giraffes and reticulatedThis word means looks like a net, and is used to describe the pattern on the skin of some animals. For example, there are reticulated giraffes and reticulated pythons. pythons.

Retractable - 

Cats (except cheetahs) and fossas have the ability to pull in, or retract, their clawsThe fingernails of an animal, such as a bear or cat. They help to grab prey. In birds, they're called talons. when not in use.

Riparian - 

CommunityA group of living things that are generally found together within an ecosystem. of plants and animals found along waterways.

Rodent - 

Generally, a small mammalA warm-blooded animal with a backbone that breathes air, and has at least some hair at some point during its life. The females have glands that produce milk, which they feed to their young. with soft fur. Rodents have large front teeth (incisors) that never stop growing. Rodents are mammals. Guinea pigs, hamsters, mice, rats, and squirrels are all rodents.

Roost - 

A place where flying birds and bats rest or sleep, or where a birdAn animal that has wings and is covered with feathers. Birds have a backbone, are warm-blooded, produce young from eggs, and walk on their two legs. Most can fly. builds its nest.

Ruminant - 

Having a multi-chambered stomach. Cows and goats are examples of ruminants.

Runner babies - 

AnimalAny living thing that is not a plant. Most animals can move about freely. All use plants or other animals as food. All have sensory organs. offspring that stay with their mothers all the time, as opposed to hiding in a secure place while their mothers search for food (see tucker babiesAnimal offspring that hide in a secure place while their mothers search for food. Mom tucks them into the hiding place, as opposed to keeping the offspring with her all the time (see runner babies). Many gazelles are tucker babies.). Giraffes and zebras are runner babiesAnimal offspring that stay with their mothers all the time, as opposed to hiding in a secure place while their mothers search for food (see tucker babies). Giraffes and zebras are runner babies..