Summer has begun—so bring on the shark stories.

And on that note, here’s a list of shark attack facts from Uncle John’s AHH-INSPIRING Bathroom Reader (p. 104), a book you may want to add to your bathroom reading library:

• Sharks can detect the heartbeats of other fish.

• Mako sharks have been known to jump into the very fishing boats that are pursuing them.

• Bull sharks have been known to kill hippopotamuses in African rivers.

• Approximately 10 times more men than women are attacked by sharks.

• While in a feeding frenzy, some sharks bite their own bodies as they twist and turn.

• A 730-pound mako shark caught off Bimini in the Bahamas contained in its stomach a 120-pound swordfish—with the sword still intact.

• Lemon sharks grow a whole new set of teeth every two weeks.

• Sharks have a sixth sense. They can navigate by sensing changes in the Earth’s magnetic field.

• Sharks will continue to attack even when disemboweled.

• Greenland sharks have been observed eating reindeer when they fall through ice.

• Three men who spent five days adrift in the Atlantic in 1980 had a shark to thank for their rescue. They fell asleep, but when the attacking shark nudged their raft, they woke  up…in time to flag down a passing freighter.

• Some sharks can detect one part of blood in 100 million parts of water.

• Bull sharks have been known to pursue their victims onto land.

• The jaws of an eight-foot shark exert a force of 20 tons per square inch.

• The average shark can swallow anything half its size in one gulp.

• The original idea for steak knives derived from shark teeth.

• Approximately 100 shark attacks on humans occur worldwide each year.

Happy swimming everybody!

I got yer shark fin soup right here...

(photo)