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  • Salmon, returning to spawn, in their thousands.

  • These bears are first in line for a nutritious catch.

  • Triggered by hormonal changes, the grizzly bears now enter a phase of hyperphagia.

  • This allows them to eat constantly for up to 20 hours a day, without ever feeling full.

  • They can consume up to 100,000 calories in a single day.

  • And given the abundance of salmon, they can afford to be picky.

  • Just like the bears in the tropics, they seek out the highest form of energy.

  • Selecting only the fat rich eggs, the skin and brain of the fish.

  • In open water, it's not always easy.

  • But as the salmon move further upstream, the grizzlies are here too.

  • Where the river narrows it will be easier to land a catch.

Salmon, returning to spawn, in their thousands.

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B1 UK BBC salmon grizzly grizzly bear upstream hormonal

Grizzly bear's amazing salmon catching techniques - BBC

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    Nina posted on 2020/02/24
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