a class of similar plants or animals
There are many species of mammals.
risk
the chance of loss as a result of some hazard
The blue whale is at risk of becoming extinct.
reason
an explanation for why something happens; a cause
There are many reasons why we should take more action to protect endangered species.
hunt
to follow and try to kill for food or sport
The African elephant is in danger because humans hunt them for their tusks.
habitat
the natural environment of an animal or plant
The places where animals live are called their habitats.
disease
an illness that prevents animals or plants from being healthy diseases are the reason the koala bear is endangered.
marsupial
a kind of animal whose females carry their babies in a pouch
A kangaroo is a famous marsupial.
mammal
kind of animal that gives birth to babies and feeds them with milk
Monkeys, elephants, and whales are mammals. They all give birth to their babies.
insect
a small, six-legged animal such as a fly or ant
The African elephant, as well as hundreds of birds, fish, insects, and other mammals, needs our protection.