This story is taken from Explorer magazine, a nonfiction reading resource for learners in second to fifth grades, published by National Geographic Society. Have your learners read the story.
reproduction of rare species controlled by humans in a closed environment, such as a zoo.
management of a natural resource to prevent exploitation, destruction, or neglect.
organism threatened with extinction.
process of complete disappearance of a species from Earth.
person who hunts or fishes illegally.
to create offspring, by sexual or asexual means.
group of similar organisms that can reproduce with each other.