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re: Birds are the only surviving dinosaurs
Posted on 5/29/22 at 10:56 pm to UndercoverBryologist
Posted on 5/29/22 at 10:56 pm to UndercoverBryologist
quote:
There’s enough evidence to demonstrate that birds are nothing more than modern day dinosaurs, but the most striking is the similarities in skeletal structures:
Now do dolphins and ichtyosaurs.
Posted on 5/29/22 at 11:03 pm to squid_hunt
Like I said, there’s more than enough key pieces of information. The skeletal structure is just visually striking.
We can also use molecular phylogenetic (trees built upon how closely similar different species are to one another based upon genetic similarities): LINK /
We can also use molecular phylogenetic (trees built upon how closely similar different species are to one another based upon genetic similarities): LINK /
quote:
“Most of the collagen sequence was obtained from protein and genome databases but we also needed to sequence some critical organisms, including modern alligator and modern ostrich, by mass spectrometry,” says Asara, director of the mass spectrometry core facility at BIDMC and instructor in pathology at HMS. “We determined that T. rex, in fact, grouped with birds — ostrich and chicken — better than any other organism that we studied. We also show that it groups better with birds than modern reptiles, such as alligators and green anole lizards.”
Posted on 6/7/22 at 10:16 pm to squid_hunt
quote:
Now do dolphins and ichtyosaurs
The Field museum in Chicago has a HUGE exhibit comparing the two. Pretty crazy. But the evidence points to dolphins and whales being land mammals that went back into water.
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