Nurse Shark

Nurse shark (Brian Lasenby /

Nurse sharks (Ginglymostoma cirratum) have a yellow- to gray-brown body, strong jaws, and distinctive tail fins that can be up to one-fourth their total length. In contrast to most other sharks, nurse sharks have smooth skin. They reach about 3 meters in length.. Some divers have been attacked after approaching a sleeping animal. In total, 10 unprovoked attacks on humans (all nonfatal) have been reported.

Inhabits the East-Pacific Ocean.

Inhabits the Atlantic Ocean.

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This supplemental online resource accompanies the book Scuba Diving Hand Signals by Lars Behnke, available on Amazon.