Sharpnose sevengill shark

The perlon shark is a deep-water predator found in oceans worldwide. Unlike most sharks, it has seven gill slits instead of five. This small but feisty hunter snacks on fish and invertebrates, and won't hesitate to snap if caught.

• One of only two shark species with seven gill slits.
• Aggressively defends itself by biting when handled by humans.
• Hunts actively despite its modest size, eating fish and invertebrates.