Bear hair and fish weirs: Meet the Indigenous people combining modern science with ancestral principles to protect the land

The Heiltsuk Nation of British Columbia's central coast is using traditional knowledge in concert with modern scientific approaches to monitor wildlife, count salmon, and maintain the health of waterways in their traditional territory.

The ancestral laws, or "vias," are a set of principles centered on respect, responsibility, reciprocity and stewardship for all sentient beings.

Researchers created knee-high salmon-scented bear snares to trap grizzlies.

The Heiltsuk used their DNA to track their movements.

The British Columbia government ended trophy hunting of all grizzlies in 2017 .

Grizzlies feed on salmon during the spawning season , leaving the carcasses, skin, bones and leftover flesh.

In recent years , some coastal First Nations have regained a stake in the management of their fisheries.

The Heiltsuk have been monitoring and researching the current state of salmon systems in the territory.

They also collaborate with scientists to collect data when necessary.

To uphold their stewardship practices, the Heiltuk educate their children on their culture, fostering a connection with the natural world.