| A | B |
| excerpt | a piece |
| swirled | turned |
| claim | to say that something is true |
| retreat | to move away from |
| remote | far away from places/people |
| spotting | seeing/noticing |
| blurred | not clear |
| swarmed | moved together in a large group |
| murky | unclear and dark |
| bulky | large |
| loch | a lake |
| Scotland | one of the nations in the United Kingdom |
| creature | a living thing |
| snakelike | long; looking like a snake |
| legendary | based on a story that is handed down over time |
| monster | a scary creature |
| enormous | very big |
| prehistoric | the time before people wrote about history |
| frightened | scared |
| ferocious | very fierce or cruel |
| mysterious | having no known cause |
| sightings | things that people see |
| legends | stories from long ago |
| close-up | a picture of something up close |
| sharpen | make better, make clearer |
| flippers | wide parts of the body on certain sea animals, used for swimming |
| grainy | unclear |
| sonar | a tool used to find things under water |