Deep in the jungle of Malaysian Borneo outside of Batang Ai National Park, about two hours from civilization, our guide uncoiled a weighted fishing net — which he had made by hand — and tossed it into the river. He put on a pair of old-school, glass-lens diver’s goggles and waded in, then dove down to retrieve the fish he had trapped and snapped their necks before tossing them to the shore. I collected the dead fish and put them into a bag. I was a complete bystander at this point, fully dependent on this man for my food. I decided that was all about to change.

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