Posted onJune 26, 2023|Comments Off on No evidence polar bears survived Eemian warmth because they were not yet fully ice-dependent
Is evolution primarily fast or slow? Does it take hundreds of thousands of years or a few generations to produce a new species? Ignoring vast evidence to the contrary, most geneticists insist that evolutionary change is imperceptibly slow and one of them is using this misconception to support the human-caused climate change narrative.
For polar bears, the question is this: could brown bears (aka grizzlies) have survived for hundreds of thousands of years living in a completely different habitat–the perpetually-frozen world of Arctic sea ice–before significant biological changes took place? I contend the answer is no. Moreover, if I am correct that polar bears arose ca. 140,000 thousand years ago (140kya) during the height of an extreme glacial period, the fossil evidence concurs. Analysis of fossil remains show that by about 115-130kya at the latest (after perhaps 10k years), polar bears were primarily eating seals as their modern counterparts do and their bones had lost the distinctive features of their grizzly ancestors.
But that’s the maximum time frame: research on other animals indicate that such critical changes almost certainly took place long before that, within the first few generations of life on the sea ice. If coordinated changes had not taken place very quickly, within ecological time, brown bears would simply not have survived the harsh life on Arctic sea ice.
Posted onJune 21, 2023|Comments Off on Claims of interspecies hanky-panky have unfairly sullied polar bear & Neanderthal reputations
One big question I asked before writing my book on polar bear evolution was this: did interbreeding with grizzlies, aka brown bears, profoundly impact polar bear history, as geneticists insist? Or is something else going on?
Polar bear hybrid, 3/4 grizzly (offspring of a hybrid female backcrossed to a grizzly male), Ulukhaktok, Victoria Island, Canada, 2010.
Virtually all genetic studies done in recent years, which I review in my book, conclude that hybridization with grizzlies has happened to various degrees over the course of polar bear history (e.g. Cahill et al. 2013, 2018; Cronin et al. 1991; Edwards et al. 2011; Hailer 2015; Kumar et al. 2017; Miller et al. 2012). Two of the most recent studies claim the most complicated hybrid ancestry for polar bears yet, invoking tales of “extensive” past hybridization events between the two species (Lan et al. 2022; Wang et al. 2022).
But does their interpretation of the genetic data represent reality or does it simply fit the authors’ preferred but false narrative that climate change is to blame for recent hybridization events and therefore likely to happen more often in a warmer world? And if, as I argue in my book, grizzly hybridization isn’t needed to explain polar bear evolutionary history, what does that say about similar claims that there has been a significant amount of Neanderthal interbreeding with humans in our past? Put another way, are geneticists everywhere going overboard with claims of interspecies hanky-panky?
Posted onJune 11, 2023|Comments Off on How grizzlies evolved into polar bears: The first book to tell the whole story is now available
Polar Bear Evolution: A Model for How New Species Ariseis the fascinating story of the origin of polar bears. It reveals not just when and where the species came to be, but how it happened and why the bears were able to survive repeated cycles of sea ice change, some of unimaginable severity.
No other book like this exists. Despite decades of serving as an icon for the catastrophic climate change narrative, the polar bear has never had its evolutionary history explained so completely, never mind in a fully-referenced, plain-language style. And I couldn’t have done it without the financial help of my many supporters, so I thank you all again for your assistance in getting this important work completed.
The author of Polar Bear Evolution, Susan Crockford, is a good, credentialed scientist. Her writing is clear; her thinking is also. She has a broad understanding of biology and an informed paleo perspective. Crockford condenses a very large literature on polar bear biology and evolution in this book which will help readers understand the science related to the evolution of an Arctic species. Perhaps the most important aspect of this book is its synthesis of information from the fields of wildlife biology, molecular evolution, paleontology, and climate. Her original ideas and hypotheses on thyroid hormone’s role in evolution are very important and add a credible mechanism of phenotypic change which complements the literature on molecular genetic evolution. Polar Bear Evolution is an important contribution to science and its application in evolutionary biology and wildlife biology. Matthew A. Cronin, Ph.D.
Posted onJune 2, 2023|Comments Off on 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.
Posted onMay 30, 2023|Comments Off on 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).
Posted onMay 8, 2023|Comments Off on 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.
Posted onApril 15, 2023|Comments Off on Russian walrus and polar bears continue to thrive US researchers tell the Washington Post
Interviews with US researchers for a piece in the Washington Post earlier today contain revelations that walrus and polar bear populations in the Russian Far East continue to thrive, despite insisting that polar bears face a dire future without human interference.
This article on collateral damage of Russia’s war with Ukraine comes with this stunning sub-headline:
The invasion [of Ukraine] is first and foremost a human tragedy, but it is also dire for wildlife, stalling scientific work on polar bears and other wildlife threatened with extinction.
The article prominently features a researcher working on Chukchi sea polar bears, which are currently thriving but still tagged with a status of “threatened” based entirely on computer models that predict a dire outcome 30 years from now. The writer also interviewed a scientist working on Pacific walrus, which likely number more than 200,000 animals and are not considered “threatened,” a point oddly not mentioned by the author or the researcher interviewed (Crockford 2023; MacCracken et al. 2017; Fischbach et al. 2022; USFWS 2017a,b).
Posted onFebruary 8, 2023|Comments Off on Polar bear evolution book is progressing well
Just a short update regarding progress on the book. I am deciding on a cover design while addressing suggested changes as they come back from the editor, and preparing marketing material. If all goes to plan, I am on track for a March publication date–thanks to your support.
In the early 1960s paleontologist Bjorn Kurtén thought that polar bears likely arose from a brown bear ancestor based on fossil evidence alone, and his estimate of when this happened was determined by the age of fossil remains of both species. As I will show in the chapters that follow, despite more fossil evidence being available and additional evidence from molecular genetic studies, his estimate is still the most likely time frame for when the polar bear came to be.
Comments Off on Polar bear evolution book is progressing well
I’m still here, in part because of your support, both intellectual and financial. I’ve continued to effectively challenge the baseless rhetoric that polar bears are helpless victims of human-caused global warming by providing fully referenced information without climate fear-mongering. I’ve run this blog for ten years, written numerous scientific reports, a peer-reviewed paper, and a raft of entertaining and informative books.
Now I need a bit more help.
I’ve decided to use this occasion to kick-start a donation drive to help cover production costs of my new polar bear evolution book. In many ways, your enthusiastic support over the years has led me to write this book: the complete story of polar bear evolution, including the role of hybridization, but without the baffling scientific jargon. It will put everything we know about polar bears into evolutionary context–not just the when and where but the why and how.
Nothing like this exists and I don’t think you’ll be disappointed. I’m on track for publication in early 2023.
I’m asking those of you with the means to help, to assist me in getting this important book across the finish line. Details below.
UPDATE 1 December 2022: GOAL REACHED! What an amazing community this is–$5210 raised in two days. I am truly grateful for your generosity and moral support. Your donations will ensure that this polar bear evolution book gets published quickly and looks professional. Heartfelt thanks to all who participated. I will announce the winners of the special incentive (see below) next Tuesday, 6 December.
Posted onNovember 1, 2022|Comments Off on King Charles & David Attenborough parrot WWF activist nonsense they naively accept as ‘science’
The World Wildlife Fund (WWF) was created in 1961 to raise funds for wildlife conservation and immediately recruited European royalty to help attract wealthy benefactors. At first it was a novel good cause and this is why Britain’s royal family, plus their close friend David Attenborough, have been loyal supporters for six decades. However, for more than twenty years, the WWF has not been the benevolent conservation organization that it was in the 1960s yet these powerful men support them with more vigor than ever.
Prince Philip was the first president of the WWF-UK but ended his association with the group when they morphed into a politicized activist organization lobbying for the limitation of fossil fuels to curb human-caused global warming. However, Prince Charles, now King Charles III, became even more involved in WWF propaganda machine and eventually initiated son William, now heir apparent, into doing the same.
When the WWF began falsely promoting itself as a scientific authority a dozen or so years ago, these naive elite boosters accepted it without question, parroting unsubstantiated WWF climate doomsday talking points at every opportunity. These men don’t speak with an authority of their own knowledge on this topic: they use their exalted positions to assist the WWF and others achieve their utopian dream: destroy for others the capitalism that created their own wealth and power.
It is clear now that many of the goals of the WWF are also shared by the World Economic Forum (WEF), and that these complement the vision the King and David Attenborough have for the future. They all want a return to a world with fewer people that live meager, circumscribed lives while the rich carry on their jet-setting ways. The King will lobby again for their collective vision of the world this Friday at Buckingham Palace.
Attenborough also spoke out on the topic in person a few weeks ago (see below) after years of making documentaries and public statements that make his position very clear. Attenborough became an official WWF ambassador in 2015, the same year that the WWF partnered with Netflix and the BBC to make their first documentary, ‘Our Planet’. The WWF’s warped perception of science prevailed in ‘Our Planet’, so it’s no wonder the documentary is full of misleading and deceptive information. The film featured the infamous falling walrus fiasco that is the focus of my book, Fallen Icon: Sir David Attenborough and the Walrus Deception.
I have copied an excerpt below about the WWF-Royalty-Attenborough connection as important background to understanding the power structure of the climate change and animal conservation agenda that is now being pushed hard in an emotionally manipulative manner. I have spent years showing that conditions in the natural world are not as bad as Attenborough and the WWF insist and so do not warrant extreme ‘solutions’ as proposed by King Charles, the WEF, and many who will attend the COP 27. I will continue resisting this utopian fantasy.
Watch polar bear habitat reform in the Canadian Arctic: “last 10 days” Canadian Ice Service animation (works anytime) HERE.
See Quote archive for details.
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