| A | B |
|---|
| environment | the combination of conditions that affect how a living thing exists and grows |
| breach | the behavior where a whale leaps almost entirely out of the water |
| lobtail | the whales head is down in the water and it slaps its tail on the water's surface |
| dorsal fin | the fin along the top(back) of a whale or fish |
| flukes | the whale's tail |
| belay | winding a rope around a pin or short post |
| mammal | an animal with a backbone that nurses its young, has hair, and gives birth to live babies |
| mysticete | a whale which has baleen |
| cetologist | a marine biologist that studies whales |
| pod | a group of whales |
| marine biologist | a scientist who studies life in the oceans |
| behavior | what a living thing does; how it reacts to stimuli in its environment |
| odontocete | a whale with teeth |
echolocation,  | a way of locating objects by sending out sound waves and using the returning echo to find out what distance , shape and size it is |
| extinct | when no member of a species is left alive |
| evolution | the process of gradual change by which organisms adapt to their environment |
