Sand Tiger Shark at Ripley's Aquarium in Toronto, Canada
Watching these sharks (and stingrays and dozens of other species of fish) swimming by our sides and overhead in the 2.9 million liter tank was mesmerizing. This photo shows you one of his eyes (which looks like a target!) and those teeth! A shark has no bones in its body. A shark’s skin is covered with tiny flat v shaped scales know as denticles, which are like small, razor-sharp teeth. These denticles decrease drag and turbulence, allowing the shark to swim faster and more quietly.