t Phjys.org: Now, a research team from Imperial College London, the University of Bristol and University College London has shown that only the asteroid impact could have created conditions that were unfavourable for dinosaurs across the globe.
If so, is this really “evolution” or is there a library of possibilities that the dinos could reach into?
Some think it might just be bacterial DNA but, as Bailleul points out, how hard is it to tell bacterial genetic material from dino stuff?
The trouble is, the COVID-19 stuff is enough sermonizing for now. We bet the dinosaur debate continues and so does humanity. Also, Millennials eventually grow up.
But get this: Benson goes on to explain that one of the “bizarre” features of Oculudentavis is qualities present in lizards but neither in birds nor in dinosaurs. It is smaller than most hummingbirds but had over a hundred teeth… The more research we do, one suspects, the more of this type of thing we’ll find and the harder it would all be to explain to our old Darwinian schoolteacher.
If these researchers are right, then mechanisms for warmbloodedness (endothermy) date back much earlier than we used to think. Maybe one hundred million years less for some kind of Darwinian evolution of the trait?
Michael Marshall: “What’s clear is that dinosaurs changed drastically. At the start of the Carnian, they were all small and bipedal. But by the end, the two major groups had emerged.” But can rain do all that is needed?
What’s interesting here is that even though just regrowing teeth through life would seem like an advantage, for mammals, more complex teeth turned out to be a bigger advantage.
In short, the new find suggests that some species don’t really exist; they are just the same type of dino with different horns.
Sure, though it does feel odd to see the words “feathered” + “polar” + “dinosaur” in the same sentence. 😉
It’s certainly valuable new information. The outstanding puzzle has always been, why were all dinosaurs killed off but not all mammals or reptiles?
Actually, the Anthropocene is mainly a testament to the enormous power of immaterial ideas to shape things, for good or ill. It is the best argument against materialism and it is right under our noses.
But the Woke war on science, now that IS real.
Some think the remarkable spines were for protection, others only for display.
Sixty-six million years ago, an asteroid hit the Yucatan Peninsula in Mexico and produced cataclysmic disruptions that, it is believed, killed off about 75% of species (the K/Pg extinction). But many researchers think there must have been other factors at work.