The high-stakes quest to save a behemoth, croaking fish

The endangered totoaba is fished illegally in Mexico for its swim bladder and sold in China to make medicinal soup. What can combat this lucrative trade?

A Mexican fisherman examines his day’s catch from the Gulf of California. Fishermen working out of San Felipe often illegally use gillnets to target the area's fish, including totoaba, a protected species that Mexico considers endangered.

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