How Killer Whales are Changing the Arctic

December 20, 2020

The arctic is changing.
Killer whales did not used to have access, due to widespread seasonal ice. Now that ice is receding.

The consequences are profound for sea life, and humans, as this spectacular video vividly shows.

3 Responses to “How Killer Whales are Changing the Arctic”

  1. redskylite Says:

    ery instructive 10 minute video – seeing Arctic changes that should be measured in millennia, not less then my lifetime.

    More marine engineering we are doing with our fossil burning pursuits: (Sooner we stop the better for all)

    ===============================================

    “Strange ecosystems are expanding, thanks to climate change — a development that is of concern for fisheries and anyone who relies on oxygen-rich oceans.”

    https://www.news.ucsb.edu/2020/020130/oceans-without-oxygen

    ================================================

    ‘Devastating skin disease covering up to 70% of a dolphin’s body tied to climate change’

    https://www.eurekalert.org/pub_releases/2020-12/tmmc-dsd121820.php

  2. rhymeswithgoalie Says:

    There was an analysis of the post-human extinction of megafauna in Australia (IIRC), where they determined that the amount of extra deaths human hunters caused among populations did not have to be very high to reduce the replacement rate enough to drive them extinct.

    Similarly, these “sea wolves” may not have to be all that numerous to permanently wipe out the Arctic populations of seals and narwhals, putting more competitive pressure on polar bears at the same time.


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