| build dam | 0.79 |
| build lodge | 0.70 |
| cut down tree | 0.64 |
| build their homes | 0.58 |
| eat twig | 0.49 |
| mate for life | 0.49 |
| build their dams | 0.48 |
| rebuild the dam | 0.47 |
| use their tails | 0.44 |
| fell tree | 0.44 |
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| damage | 0.35 |
| thousands of dollars | 0.30 |
| conflict | 0.24 |
| major destruction | 0.24 |
| a lot of damage | 0.24 |
| flooding | 0.19 |
| tooth | 0.40 |
| long history | 0.35 |
| short legs | 0.34 |
| natural predators | 0.28 |
| few enemies | 0.28 |
| right | 0.25 |
| powerful jaws | 0.25 |
| excellent hearing | 0.19 |
| a set of transparent ey… | 0.16 |
| the largest rodent | 0.50 |
| large aquatic rodent | 0.46 |
| north america’s largest… | 0.44 |
| animal | 0.40 |
| the second largest rode… | 0.40 |
| rodent | 0.35 |
| canada’s national animal | 0.34 |
| semi-aquatic mammals | 0.32 |
| the new york state anim… | 0.25 |
| challenging animal | 0.23 |
| removed | 0.56 |
| trapped | 0.54 |
| released | 0.47 |
| known for lodge | 0.45 |
| known for building dams | 0.43 |
| known for canal | 0.43 |
| caught | 0.43 |
| killed | 0.42 |
| prepared | 0.41 |
| spotted | 0.33 |
| More » |