Grizzlies vs. grizzly X polar bear hybrids by appearance alone: a photo essay

Hybridization with grizzlies comes up repeatedly in genetic studies that aim to zero in on polar bear origins and is one of the issues I explore in detail in my upcoming new book, Polar Bear Evolution: A Model for How New Species Arise. Here is a photo essay to get you thinking about grizzly X polar bear hybrids, because understanding the topic is critical to unravelling the genetic evidence on how polar bears came to be.

For example, who can forget the hoopla over the bear shot near Arviat on the shore of Western Hudson Bay in 2016 (shown above) that everyone, including polar bear expert Ian Stirling, decided must be a hybrid–but it turned out to be a blonde grizzly.

Explaining all the ins and outs of why hybrids are important to polar bear evolution is an important part of my book.

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The story of polar bear evolution could not be told without discussing climate change

Polar bears arose as a new species because the climate changed and forced some brown bears to colonize the sea ice. Polar bears epitomize the story of how evolution works but perhaps not quite how you imagined it.

Moving from extremes in warmth to extremes in cold characterized the last million years of geological history, as the graph above shows, where odd-numbered Marine Isotope Stages (MIS) are warm interglacials and even-numbered stages along the bottom are cold glacials. MIS 2 was the Last Glacial Maximum.

But where and when during this period of change did polar bears come to be–and how, exactly, did it happen? My new book tells the whole story, which has never been done before. Not long to wait now, the release date is only about a week away (1st week June).

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How is widespread use of helicopters to study polar bears defensible in a warming world?

If all of us should be doing “everything possible” to stop climate change, why is it still OK–15 years after polar bears were declared threatened with extinction because of predicted climate change effects–for researchers across the Arctic to use helicopters to study polar bears? Aircraft that consume massive amounts of aviation fuel and engine oils, otherwise known as ‘fossil fuels.’

Money quote: “…the lifeblood of most polar bear research is jet fuel needed by helicopters.” (Derocher 2012:107).

From Hudson Bay and the High Arctic in Canada, the Beaufort Sea off Alaska, to Svalbard in Norway (above, from 2015), polar bear research is impossible without helicopters powered by fossil fuels. This has been true since the 1980s (e.g. Ramsy and Stirling 1988). And this doesn’t even take into account the fossil fuel-powered fixed wing aircraft needed in some locations, commercial airline flights that transport personnel and equipment to distant locations, or the Tundra buggies used in Churchill (Western Hudson Bay) to get up close to bears and educate indoctrinate the tourists.

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Polar bears in W. Hudson Bay are in good shape, says researcher. So are numbers really falling?

We’ve got ourselves another round of field data–i.e., facts–not fitting the polar-bears-are-starving-to-death narrative. According to polar bear specialist Andrew Derocher, Western Hudson Bay polar bears his team saw in April while installing collars and ear tags were in good shape this year, as he said they were last year. There was no spring field work in 2021 and 2020 but in 2019, he also said the bears he saw were in good condition.

Andrew Derocher 4 May 2023, reporting on Western Hudson Bay field work

Two years in a row of bears in good condition in spring–with no mention of starving bears–does not fit the picture of a population supposedly declining due to starvation. The most recent population count for WH, which garnered wide-spread media attention just before Christmas last year, claims that a 27% decline in numbers took place between 2017 and the fall of 2021 even though sea ice conditions had been good during those five years as well. It’s a perplexing situation. Makes me really wonder what that survey report actually says, but it still hasn’t been released, five months after the results made news around the world.

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Roald Amundsen tried and failed to tame a polar bear cub in 1920

A short account of polar explorer Roald Amundsen’s failed attempt to tame a polar bear cub he had bought in May 1920 from a trader in the Russian Far East appears today in the Barents Observer. The cub was likely captured after its mother was killed, which was a common practice at a time when polar bears were being slaughtered wholesale throughout the Arctic (Crockford 2019; Honderich 1991; Stirling 2011).

It only took a month for Amundsen to give up his experiment. Below are some excerpts; read the full account here. More photos are here.

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Attenborough expects King Charles to continue his activism

Now that Charles is King, it seems the new euphemisms for WEF-style totalitarian climate change activism is a defence of “environmental issues,” “protecting the natural world,” and “backing conservation.”

In a pre-coronation interview with the BBC, Sir David Attenborough said on Friday he believes that Charles will continue his activism while he is King, despite the constitutional demand that a British monarch remains apolitical. Today is Attenborough’s 97th birthday and it seems fitting to say I believe him. Why wouldn’t he tell the truth?

Money quote from Attenborough: “…now everybody realises that the future of humanity is dependent upon a healthy natural world. The way ahead demands that leaders of the state should actually give their full backing and I’m quite sure that as King he will lead this country in a very important way.

In true 1984 style, it seems the ruling elite are redefining terms to fit their ideology: recasting the King’s former activism and promotion of World Economic Forum agendas as entirely a defence of the environment and conservation issues. No doubt this tactic is meant to convince the naive public that there was never any politics involved in what Charles did before and so it cannot be considered political now that Charles is King.

But those who have been paying attention know better.

It also suggests that what those wealty powerbrokers have planned for us cannot work without the King’s considerable power and influence. This may sound awfully cynical but my eyes have been opened by Attenborough’s behaviour over the falling walrus issue and the alliances he’s made with the WWF and Netflix over the last few years. You may agree when you read what has been circulating in the news over the weekend, summarized below.

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17th century documents & 1970s ice maps show sea ice habitat in Svalbard has always varied greatly

Historical records show that sea ice extent along the west coast of Svalbard, Norway varied greatly in the 1600s and that there is currently more ice than was usually present at this time of year in the 17th century.

April through early June is when polar bears need sea ice the most–for feeding on newborn seals and for finding mates–and so far this spring, bears in the Western European Arctic around Svalbard, Norway have had an abundance of ice. In fact, there is only a little less ice than was normal for the late 1970s and apparently, quite a bit more than was often present in the 1600s.

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Netflix polar bear star dies in Svalbard days after being tranquilized; her orphaned cub is shot

Early in the morning on Good Friday (7 April), a mature polar bear sow with a cub at heal was chased with snowmobiles away from a recreation area used by locals on the west coast but drowned after she escaped into the water. Her cub, likely a yearling male, attacked authorities trying to retrieve her body and was shot.

It turns out this 17 year old female was well known to locals and is considered Svalbard’s most famous polar bear. They call her ‘Frost.’ She featured in the 2019 Attenborough-narrated Netflix documentary Our Planet, in the sequence showing the stalk of a newborn ringed seal pup (see screencap above), which was likely filmed in early 2018 after the cliff-falling walrus scenes in Russia that were filmed in October 2017. h/t Sheila.

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Earth Day sea ice habitat during critical spring season for Arctic seals, polar bears, and walrus

This is the most important time of year for Arctic marine mammals that spend time above the ice: birthing, breeding, and feeding. And there is plenty of the right kind of ice available for those activities this year, as there was two years ago at the same time.

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‘Less ice means more conflicts with polar bears’ narrative not supported by scientific evidence

In another failed prediction, a new study on the number of polar bears killed in self-defense in Svalbard, Norway did not find the expected correlation with lack of sea ice or more tourists (Vongraven et al. 2023). Contrary to expectations, fewer bears were actually killed in self-defence as sea ice declined between 1987 and 2019.

Money Quote from the abstract:

   “…ice cover had no significant impact on the odds for a [polar bear] kill.”

It seems the warning from polar bear specialist Andrew Derocher a few months ago was just plain wrong:

“Poor ice conditions for polar bears at Svalbard this year. Low ice will make tough hunting conditions this coming spring. Time to plan for more human-bear conflicts unless conditions change.” [13 Feb 2023 tweet, my bold]

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