| A | B |
|---|
| cartilage | the firm but flexible tissue inside a shark |
| remoras | a small fish that attaches itself to a large fish and feeds of parasites on the large fish |
| pup | a baby shark |
| predator | an animal that kills and eats another animal |
| prey | an animal that is hunted and killed by another animal |
| grinding | rubbing together until something is crushed |
| serrated | jagged edge |
| prehistoric | very old: the period of time before written records were kept |
| gliding | moving in a smooth way |
| plankton | tiny organisms floating in the water |
| blend | to hide due to similar colors |
| rare | not happening often |
