Jeff Rotman / Common thresher shark (Alopias vulpinus) caught in gill net, observed by diver at night, Huatampo, Mexico, Gulf of California, Pacific Ocean. Model released. May 2008.

Jeff Rotman / Common Thresher Shark (Alopias vulpinus) caught in gill net, Huatabampo, Mexico, Sea of Cortez, Pacific Ocean

Jeff Rotman / Common Thresher Shark (Alopias vulpinus) silhouette of one caught in gill net, Huatabampo, Mexico, Sea of Cortez, Pacific Ocean

Jeff Rotman / Common Thresher Shark (Alopias vulpinus) silhouette of one caught in gill net, Huatabampo, Mexico, Sea of Cortez, Pacific Ocean

Jeff Rotman / Common Thresher Shark (Alopias vulpinus) caught on gill net being hauled up onto boat, Huatabampo, Mexico, Sea of Cortez, Pacific Ocean. Model released. Model released.

Jeff Rotman / Spotfin Squirrelfish (Neoniphon sammara) caught in Bedouin gill net, Egypt, Red Sea

Jeff Rotman / Common thresher shark (Alopias vulpinus) severed fin being held up by gill net fisherman, Huatabampo, Mexico, Sea of Cortez, Pacific Ocean Model released.

Flip Nicklin / Vaquita (Phocoena sinus) by-catch casualty, Baja California, Mexico

Doug Gimesy / Platypus (Ornithorhynchus anatinus) researchers placing gill nets in the Snowy river. Mitta Mitta River, Dartmouth, Victoria, Australia. May, 2018. Model released.

Doug Gimesy / Gill nets placed in the Snowy river to capture, examine, take measurements and place tracking devices on Platypus (Ornithorhynchus anatinus) Snowy River, Jindabyne, NSW, Australia. September, 2017.

Doug Gimesy / Two researchers rowing into the middle of the Snowy River to collect a platypus (Ornithorhynchus anatinus) from the gill net they had set hours before. Snowy River, Dalgety, NSW, Australia. September...

Doug Gimesy / Platypus (Ornithorhynchus anatinus) researchers placing gill nets in the Mitta Mitta River to capture platypus. Mitta Mitta River, Darmouth, Victoria, Australia. May, 2018. Model released.