It's Earth Day today. Let me tell you something about polar bears. They're endangered but you have to be careful because a polar bear is one of the few animals that will stalk a human. If you go to where polar bears live, it might stalk you and when you're on the plane going home, it might be behind you reading.
Polar bears can swim 100 miles. They aren't like us. We might be 'stranded' on an ice floe if there's no land nearby, and we had no helicopter and no jet ski. We might be in trouble, but they're polar bears, and they can live in icy cold water by design. They love it.
Listing the polar bear under the Endangered Species Act could harm bear conservation efforts by eliminating revenues from the carefully-regulated sport hunting of polar bears by Americans and the importation of polar bear meat and trophies into the U.S. As hunting by non-Americans would replace hunting by Americans, nothing would be accomplished in terms of reducing the number of polar bears killed, but the revenue currently generated by American sport hunters for conservation and research efforts would be eliminated.
A lot of the time, because of the polar bears you're not allowed to go outside the door without your hunting rifle, even if it's to go to the local shop. The polar bears will come from nowhere, and you'll be eaten alive.
Polar bears did very well in the warmer times. They didn't die out at all; they didn't die out in the last 10,000 years, nor during the previous interglacial, nor the one before that. So, they're just used as a deceitful heartthrob; you know, to pluck your heartstrings because the polar bears might die out.
Nobody recognizes that a bookstore or library can also be a drowning polar bear. And in this country [US], magazines, newspapers, and bookstores are drowning polar bears. And if people can't see that or don't want to talk about it, I don't understand them at all.
The metaphor I routinely use is polar bears in the Sahara desert. You take creatures adapted to the cold and put them in the heat, the very traits that allow them to survive in one environment will conspire against them in the other. We are polar bears in the Sahara with one important distinction: we are smarter than the average bear. Once we identify the nature of the problem, we can think our way out of it. But it begins by acknowledging you didn't fail because you couldn't succeed. Because you didn't even know what the scope of the problem was. It's not your fault.
Even as I speak, the very last polar bear may be dying of hunger on account of climate change, on account of us. And I sure miss the polar bears. Their babies are so warm and cuddly and trusting, just like ours.
It was some UN agency that issued a report saying we're beyond the point of return here. And there was a picture of a polar bear on a little, tiny block of ice, which is a fraudulent - there are more polar bears than ever. The arctic ice caps are not melting. There's so much garbage out there.
Another way to test hypotheses about adaptation is to consider trait variation across a group of species instead of focusing on the trait of a single species. Rather than seeking to explain why polar bears have fur of a certain thickness, one tries to explain why bears in colder climates have thicker fur than bears in warmer climates. The former problem is hard to solve, since it is hard to say exactly what fur thickness polar bears should have if natural selection guided the evolution of that trait.
Every day, TV, newspapers, and the Internet bombard us with a message that we're destroying the earth. Ice caps are melting, rivers are dying, polar bears are drowning, and trees are doing something.
I've always thought of nuclear as something that's good for the environment. I worry about my polar bears.
I haven't been to Tasmania. I haven't been to the South Pole, and I haven't been to the North Pole. I want to see the polar bear migration before there are no polar bears. I want to see Glacier National Park before the glacier melts.
I like the idea of going to see the ice caps and the polar bears, because who knows how long they are going to be around for?
Given enough time, polar bears might migrate off the Arctic ice, evolve darker coats, find a different diet, and thrive in a new, warmer climate. But if the ice on which they depend disappears in a few decades, they are likely to die.
I'd rather write about polar bears than people.
We'll all die out eventually. Humans will be gone. And all I'm saying is, when people worry about polar bears disappearing or whatever, it's like, well that's life, things will come and go, we'll find new species...