94 successful rescues in 20 years: the Mexican organization that saves whales trapped in nets. Since 1970, entanglements have been a factor limiting the recovery of marine mammal species.

Entanglements occur in all types of fishing operations, from industrial warehouses to artisanal fisheries. If left untreated, the whale can stop feeding and die. “We took a lot of risks in that first rescue but because of my training and logic I didn't let anyone go into the water,” says Astrid Frisch.