Ocean...: Human Planet -

As modern pressures like overfishing and climate change increase, traditional methods are pushed to more dangerous extremes.

Industrial-scale operations are emptying the seas of large predators like sharks and tuna, threatening the survival of the traditional communities featured in the show. Human Planet - Ocean...

This is perhaps the episode's most harrowing segment, featuring dozens of young men diving 40 meters deep to set massive nets. They breathe through a tangled web of plastic hoses connected to a noisy diesel engine on the surface, risking "the bends" (decompression sickness) every time they dive. As modern pressures like overfishing and climate change

Fishermen in Brazil have a centuries-old partnership with wild bottlenose dolphins. The dolphins herd schools of mullet toward the shore and signal the fishermen precisely when to throw their nets. This cooperation increases the harvest for both species. They breathe through a tangled web of plastic

In a blend of spiritual ritual and survival skill, "shark-whisperer" Blais uses traditional coconut rattles to lure sharks to his canoe before catching them by hand—a practice that is rapidly vanishing.

While the series focuses on human adaptation, it underscores that the oceans are changing faster than we can adapt.