| A | B |
|---|
| extinct | every one of kind has died |
| dawn horse | changed to horses of today |
| survive | continue to live |
| endangered | may become extinct |
| DDT | harmed the bald eagle |
| conservation | saving natural things on Earth |
| national wildlife refuge | animals protected by law |
| national park | land set aside to protect animals |
| national forest | different kinds of trees protected |
| conservation department | makes hunting laws |
| breeding program | increase number of animals born |
| chemicals | harm animals in environment |
| elephants | killed for ivory tusks |
| American bison | killed for meat and fur |
| whooping cranes | stand about 5 feet tall |
| hunting | keeps wildlife in balance |
