| A | B |
| zoologist | n. A person who studies animals. |
| observant | adj. Watchful; careful. |
| encounter | v. To meet by chance. |
| wharves | n. Piers at which ships stop. |
| sensitive | adj. Able to feel things well. |
| nonstop | adv. Constantly; all the time. |
| theoretically | adv. According to ideas; supposedly; in the mind. |
| typical | adj. Usual |
| lifespan | n. The amount of time a thing lives. |
| rodents | n. Types of animals that gnaw with big front teeth. |
| strewn | v. Scattered; spread around. |
| deter | v. To hold back; to prevent. |
| rabies | n. A disease spread by animal bites. |
| adapted | v. Fit in. |
| sewers | n. Underground pipes that carry dirty water away from buildings. |
| culverts | n. Large drain pipes that go under a road. |
| ventilation | n. The process of bringing in fresh air. |
| abundantly | adv. With more than enough; richly; well. |