| A | B |
| endemism | occurring in only one place. |
| adaptation | features of an organism which help it survive |
| eradicate | get rid of |
| gigantism | process where animals species become larger over time on an island |
| dwarfism | process where animal species become smaller over time on an island |
| invasive | takes over |
| species | distinct type of plant or animal |
| genetic drift | differences in a species due to chance |
| rabbit rule | principle which states that, on an island, animals bigger than a rabbit get smaller, while those smaller than a rabbit get bigger |
| mammal | animals who nurse young with milk and have hair. |