Sharks The mere word might cause you to think you need to get out of the water. Chums takes a fun look at shark species around the globe to help you learn about these creatures. Far from the monsters we see in movies, they are a critical part of our oceans. Some are big and some are small. Some are fast and some are slow. Some eat large prey and some eat microscopic creatures. Take a dive under water with us and let's discover our chums - sharks