What is an alternative explanation for “polar dinosaurs” other than endothermy?
- Anonymous1 month agoBest Answer
During the age of dinosaurs, global temperature was hot. Antarctica was not frozen until 35 million years ago, or 30 million years AFTER the dinosaurs were wiped out. Temperature in the North Pole was equally mild, around 25-27 deg. C, and there were marine reptiles living in the Arctic Sea. Polar dinosaurs did not need endothermy. It was warm enough for ectotherms to live there.
When there was a cold spell at the end of the Jurassic, lots of large dinosaurs became extinct, along with a lot of large pterosaurs. By the end of the Cretaceous, when global temperatures rose to levels seen in the mid-Jurassic, large dinosaurs such as T. rex and Triceratops have evolved from smaller ancestors that were around during the early Cretaceous. Large endotherms simply cannot exist in hot climates because their small amounts of body surface area relative to their volume makes it hard to lose excess body heat. for the same reason, large ectotherms cannot exist when the climate is cold because the small amounts of body surface makes it hard for them to gain enough heat by basking.
Large endotherms will cook themselves from the inside out when the climate is hot. Large ectotherms would not be able to warm themselves enough to digest their meals or even move. The claim of endothermic dinosaurs adapted to a cool climate is simply a crock. Dinosaurs were large ectotherms or gigantotherms. Period. Full Stop.
- Robin WLv 74 weeks ago
They have found dinosaur fossils in what would have been colder climates. Proof that they were in fact, warm-blooded like their bird descendants. One fossil was found of a dinosaur incubating a clutch of eggs. You can't do that if you aren't warm-blooded. Many of them were covered in down feathers to keep them warm.
- Kevin7Lv 71 month ago
In the past the polar regions of the Earth were warmer and most dinosaurs were thought to be warm-blooded (produced their own heat)
- busterwasmycatLv 71 month ago
warmer conditions than at present.
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- Anonymous1 month ago
Why allow anyone to dictate to you what you should think?
Fish eggs are still fish eggs and chicken eggs are still chicken eggs. No one thing 'morphed' into another thing (not to be confused with speciation as within dog breeds); or slight changes within a species to adapt to environment. Evolution theorists (or is it terrorists?) will claim that over millions of years these adaptations changed one animal into another; seems plausible from a 30 thousand foot perspective, but when you take a closer look, the theory does not stand up to scrutiny.
Decide for yourself:
The word 'dinosaur' came from two Greek words that mean 'terrible lizard': a word made up in the 1800s to describe reptile fossils.
The word 'fossil' is from the French for 'dug up'.
Under the forces of extreme pressure, everything that was engulfed in mud during the world-wide flood turned into stone.
For about a year and a half minerals permiated plant and animal tissue. The mud also became stone as it compressed under the weight of billions of tons of water: stone cannot be dated. Once around the sun is a year: you cannot hold up a rock and decide how many times it has been around the sun.
***When a fish dies, it rots or gets eaten; it does NOT turn into a fossil. But there are fish fossils everywhere on the planet (even on the tops of mountains). Every fossil in the world is the result of the world wide flood. Period.
***Before the flood everything lived ten times longer; that's why tusks, antlers, horns, fangs, trees, bugs and reptiles grew huge.
I used to work with reptiles: among many things I learned about them was that they NEVER stop growing as long as they live.
Pre-flood the air had 50% more oxygen in it.
Hyper-oxygenated air; the world was like a hyperbaric chamber, everything lived longer because of the air quality. We know this because we have air samples from before the flood; extracted from bubbles trapped in fossilized sap (amber).
Adam lived until he was 930. Noah was 600 when he built the Ark (Google Noah's Ark Turkey - a tourist attraction since the 1970's A.D.).
Believing in lies about evolution makes you guilty of making God out to be a liar. This is slander against the Most High: spiritual treason.
You've heard of bacteria 'evolving'?
No such thing: simply, the hardier bacteria were never killed off by the antibiotic in the first place. The weaker bacteria were. All that's left is 'resistant' bacteria. They were never subject to antibiotics to begin with. They never 'evolved'.
Want to see evolution?
If God wants to raise children for Abraham from the stones He can do it.
He doesn't need any of us.
He can change what is in the blink of an eye.... He doesn't need millenia.
- HenryLv 41 month ago
What does that mean.
- Anonymous1 month ago