David Fleetham / Bowmouth guitarfish / Shark ray (Rhina ancylostoma) resting on a reef surrounded by various reef fish, Philippines, Pacific Ocean.

Sirachai Arunrugstichai / Shark ray (Rhina ancylostoma) handled by a team of aquatic veterinarians, where the teeth for crushing shells of mollusks and crustaceans can be clearly seen, Rayong Province, Thailand. Critically end...

Sirachai Arunrugstichai / Dorsal fin of a Bottlenose wedgefish (Rhynchobatus australiae) measured by a researcher at a fish landing site, Ranong Province, Thailand. Despite being scientifically classified as rays, the fins f...

Sirachai Arunrugstichai / Shark rays (Rhina ancylostoma) two juveniles, displayed on the floor for auction at a fish landing site in Ranong Province, Thailand, April 2015. Critically endangered species.