Conduct a scavenger hunt to collect items similar to those recovered from shark stomachs. Create an informative and entertaining natural history exhibit for their school.
Sharks are among the most successful and ancient groups of fishes.
Fossil evidence indicates they have existed for more than 400 million years. Presently, there are more than 370 species of sharks known to science. Only a handful of sharks, including the blue, white, hammerhead, and reef shark, are considered dangerous to humans, and the chances of being attacked by even one of these is extremely remote. Contrary to popular belief, not all sharks must keep swimming in order to breathe. The horn shark, swell shark and sand tiger shark are examples of sharks that can breathe while motionless.