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A postmodern coal-powered Cockatoo is larger, meaner and nastier than any bird photographed in the paleolithic. | Photo by Photoholgic on Unsplash
It’s a new horror to scare the kiddies:
Animals ‘shape-shifting’ as climate warms: study
Paris: Some animals are “shape-shifting” and have developed bigger tails, beaks and ears to regulate their body temperatures as the planet warms, according to a new study.
The Australian parrot, for example, had shown an average 4-10 per cent increase in the size of its bill since 1871 and the authors said this positively correlated with the summer temperature each year.
For one, do bird-bills cool birds? For two, how many parrot bills were measured in 1871 in Australia and do we think we would know if their bills got 10% bigger? For three, there is no “Australian parrot”, there are 56 different species. And fourthly, even if they had got bigger, and we could measure that, which we probably can’t, how do we know it’s not due to “something else” that changed in the last 150 years, like all the orchards, crops, trees and other things we planted? According to some botanists, there are more foreign plants […]
Of all the homo subtypes only humans survived. We began to colonize the entire planet sometime between 300,000 and 60,000 years ago.
Scientists Have a Bold New Hypothesis For Why We’re The Only Humans Left on Earth
Depending on who you ask, we’ve shared the Homo genus with six other species across the millennia. And those are just the ones we know about. One by one they’ve all vanished. Around 30,000 years ago, the last of the Neanderthals disappeared…– Science Alert
Homo erectus spread from Spain to Indonesia, but stuck to forest and grassland. Neanderthals specialized in cold northern realms and survived hundreds of thousands of years of ghastly ice ages. They coped better than we do with cold but we are the ones still living in Siberia. Tell the world: we’re adaptable!
Maybe it’s time to stop trying to adapt the planet to us, and get back to adapting us to the planet instead?
Some of the ecological challenges faced by Pleistocene H. sapiens. a. The Thar Desert of northwest India at the site of Katoati. Credit: James Blinkhorn. b. The highlands of Lesotho at the site of Sehonghong. Credit: Brian A. Stewart. c. […]
Tragic news about moose today — the climate used to be the same for 65 million years, so moose are unprepared to deal with the sudden extra degree on the modern Earth-Perfect-Thermostat.
JACKSON, Wyo. – Global warming might cause moose to freeze to death in Yellowstone National Park.
Don’t cry. Moose are declining:
The reason for the decline is complicated. Wolves have taken moose, and grizzly bears have been expanding their presence.
But climate could be the biggest challenge. Part of the problem is ticks. A moose with too many of the parasites during the winter can lose its hair and freeze to death.
We all know, before Columbus there was one perfect quota of moose, bear, wolf. The numbers didn’t vary from the sacred Gaia Triangle Ratio (whatever it was). There were no cycles. Moose never declined. Then man came, used air conditioners in Florida, caused tick outbreaks in Saskatoon, and da fur fell off doz’ mooses. Cold moose!
In general, moose are simply better adapted to colder temperatures. When it’s too warm, they spend more time in the shade trying to cool down and less time feeding, Courtemanch said.
You might have […]
Compare the tallies. Sixty-five million years ago an asteroid smacked-down and only 10% of mammal species survived. So far in the Anthropocene Catastrophe, one type of rat has been wiped off a 300m island.
Press Release Mammals almost wiped out with the dinosaurs
A study by researchers at the Milner Centre for Evolution at the University of Bath and published in the Journal of Evolutionary Biology, reviewed all mammal species known from the end of the Cretaceous period in North America. Their results showed that over 93 per cent became extinct across the Cretaceous-Paleogene (K-Pg) boundary, but that they also recovered far more quickly than previously thought.
Afterwards, mammalian life recovered with unexpected speed and diversity. Chalk one up to nature and evolution. Not so fragile?
8.8 out of 10 based on 51 ratings […]
Life on Earth is proving to be so uncannily adaptive to climate change, you’d almost think that a half a billion years of climate change mattered. Perhaps the precambrian clutter is not just junk, but handy tools from past lives that we may or may not need to use. Last week it was salt-water fish that got cast out of the sea by an Earthquake, and adapted to fresh water.
Stick male guinea pigs into a zone a full ten degrees hotter, and after a couple of months, his future sons and daughters will be better adapted to hot weather. Thank epi-genetics: the genes don’t change, but some get labelled “hot”, some not. Dad’s body sticks methyl groups on choice genes which upregulates them, and the pattern of activation gets passed on in genes. It’s a way of taking his lessons in life and giving his offspring a head start.
In any case, it appears in guinea pigs that there not only can this mammal cope with changes in the climate on a daily and seasonal basis, but the machiney is in place to cope with longer term changes too.
Like father like son: Epigenetics in wild guinea […]
In 1964 an earthquake made some parts of the Pacific into ponds on a few islands. Fifty years later and the fish in those ponds are now freshwater fish. Apparently the genes for dealing with that sort of wild extreme change are held by some of the fish in the crowd and natural selection can work its wonders in a decade.
In terms of ocean acidification, this is as catastrophic as it gets, not only did the ocean become “more acidic” but it stopped being an ocean.
It can’t get much worse than this for a fish, and yet somehow life on Earth had the answer.
What’s the pH of those ponds — The ocean pH is 8.1, rain is 5.5. Those ponds will be somewhere in between.
And some people think a man-made “ocean acidication” that’s smaller than this and slower, will devastate the ocean.
Science Daily
Evolution is usually thought of as occurring over long time periods, but it also can happen quickly. Consider a tiny fish whose transformation after the 1964 Alaskan earthquake was uncovered by University of Oregon scientists and their University of Alaska collaborators.
The fish, […]
UPDATE: This is generating some good discussion, which is what I wanted to help me explain why this is relevant. It’s a study about amoeba, but reveals something I think about biological “laws” of all cooperative societies and genetics. It’s very relevant to the nature-nurture debate, and to national politics and policies. UPDATE #2: The cheating referred to in this post is defined as “social cheating” meaning to take some advantage over and above contributions to the social group. The amoeba are a simple “model system” that may help us learn more about the factors that influence the balance of “cheaters” versus “cooperators” in any social species.
See the critics and my replies at #7 and #16. Give it your best shot. :- ) Jo
You might think that corruption in science has only been around for 20 or 30 years. But I say this problem has been around since the Age of Amoeba.
The day after cells evolved to cooperate, some of them learnt to cheat. The battle of the cooperators versus the cheaters hasn’t stopped since and humans are the most socially evolved cooperators on the planet, (which just means we have more socially […]
Bradshaw Art, Kimberley, Australia. This distinctive style of painting disappeared 7,000 years ago. | Photo TimJN1
Two million years of climate change has made us human — in a ying meets yang contradiction, while climate change destroyed cultures and groups, without it, we would not be who we are. The brutal forces of Nature tested our ancestors with droughts, storms, floods and tidal surges, but if the climate had stayed the same, would we have had Bach, Leonardo, and Newton?
At the end of the day, we have a civilization that allows millions of people to pursue happiness without fear that they will die of dysentery, be murdered by marauding barbarians, or lose their children to slave traders.
We are the lucky bastards at the end of a long line of poor sods who struggled and suffered to stay one step ahead of the reaper.
Here are two stories of studies that suggest dramatic effects of climate change on long lost peoples. The second, below, may finally explain the disappearance of the mysterious well developed aboriginal artform known as the “Bradshaw” style.
Rapid changes occurred 2 million years ago
Some swings occurred so fast they happened in “hundreds of […]
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JoNova A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).
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