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First healed dinosaur wound discovery

petrel41's avatarDear Kitty. Some blog

This 2018 video is called Jurassic World Evolution: Tyrannosaurus rex vs Edmontosaurus herd.

From National Geographic:

Scarred Duckbill Dinosaur Escaped T. Rex Attack

A fossilized bite mark on a duckbill dinosaur indicates it survived a T. rex attack.

Ker Than

for National Geographic News

Published February 28, 2013

A scar on the face of a duckbill dinosaur received after a close encounter with a Tyrannosaurus rex is the first clear case of a healed dinosaur wound, scientists say.

The finding, detailed in the current issue of the journal Cretaceous Research, also reveals that the healing properties of dinosaur skin were likely very similar to that of modern reptiles.

The lucky dinosaur was an adult Edmontosaurus annectens, a species of duckbill dinosaur that lived in what is today the Hell Creek region of South Dakota about 65 to 67 million years ago.

A teardrop-shaped patch of fossilized skin about…

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Ranjit Singh's avatarFree Thoughts by Ranjit Singh

Antoine Lavoisier, son of a wealthy lawyer,  was a social climber, tax collector and widely held to be the founder of modern chemistry. He was born in 1743 and was put to guillotine in 1794 on the charges of selling the adulterated tobacco which was a luxury and was very costly. It came from colonies in South America established by Europeans and employed black people as captives.

Antoine-Laurent Lavoisier and His Wife (Marie-...

He discovered oxygen gas and named it so. Joseph Priestly, English scientist had also discovered this gas but named it “dephlogisticated air“. Both knew that the gas was closely associated with combustion in or around 1774. Priestly even demonstrated the synthesis of the gas by heating the mercury oxide with focused sun rays before Lavoisier when the former was a guest of the latter’s family on a tour to France. After some time of this event, Lavoisier…

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