Pascal Kobeh / Cortez round stingray / spotted round ray (Urobatis maculatus) at night, Baja California peninsula, Mexico. Sea of Cortez.

Pascal Kobeh / Reef stingray (Urobatis concentricus) at night, Baja California peninsula, Mexico. Sea of Cortez.

Claudio Contreras / Cortez Round Stingray (Urobatis maculatus), San Pedro Martir Island Protected Area, Gulf of California (Sea of Cortez), Mexico, July

Claudio Contreras / Cortez Round Stingray (Urobatis maculatus), San Pedro Martir Island Protected Area, Gulf of California (Sea of Cortez), Mexico, July

Franco Banfi / Scuba diver photographing Round Stingray (Taeniura grabata) Pico Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Round Stingray (Taeniura grabata) covered in sand, probably pregnant female, Pico Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Scuba diver photographing Round Stingray (Taeniura grabata) Pico Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Round Stingray (Taeniura grabata) Pico Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Round Stingray (Taeniura grabata) Pico Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Round Stingray (Taeniura grabata) Pico Island, Azores, Portugal, Atlantic Ocean

Alex Mustard / Southern stingray (Hypanus americanus) female swimming over ripples on a sand bank, photographed with a circular fisheye lens, The Sandbar, Grand Cayman, Cayman Islands, British West Indies, Caribbean...

Jeff Rotman / Pacific electric / Round torpedo ray (Torpedo californica) diving into the canopy of the kelp forest, Pacific Ocean, California, USA