Dinosaurs in the news
- Patagotitan on show in London, UK
- Did dinosaurs have lips? Canadian scientists say they have cracked the mystery
- What fossil eggs found in Alberta reveal about how dinosaurs became birds
Patagotitan on show in London, UK
A colossus has landed in London: A cast of what was one of the biggest animals ever to walk the Earth is now on show at the Natural History Museum.
Watch: A timelapse movie of Patagotitan’s assembly at the Natural History Museum
Patagotitan was a dinosaur that lived 100 million years ago in South America.
Measuring some 37m (121ft) from nose to tail, the beast could have weighed up to 60 or 70 tonnes in life.
The museum has brought over not just a representative skeleton but some of the real fossil bones first discovered in Argentina in 2014.
The largest is a 2.4m-long femur, or thigh bone. It’s been erected upright to give visitors an extraordinary selfie opportunity.
READ MORE: https://www.bbc.com/news/science-environment-65094602
Did dinosaurs have lips? Canadian scientists say they have cracked the mystery
As with many details about dinosaur physiology, an absence of living specimens has left a lot to the artistic imagination. Perhaps because humans are smaller than many dinosaur species, and also edible, popular representations of the ancient creatures are often strongly focused on their teeth.
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This tradition is evident in the Hollywood version of dinosaurs as depicted the 1993 film Jurassic Park. Many of the movie’s most memorable scenes feature a tyrannosaur with jaws agape. But even when the giant reptile’s mouth is shut its teeth remain plainly visible, like a row of murderous icicles.
READ MORE: https://www.theglobeandmail.com/canada/article-dinosaur-lips-canada-scientists/
What fossil eggs found in Alberta reveal about how dinosaurs became birds
· CBC News · 
Seventy-five million years ago in southern Alberta, a river flooded, burying the eggs of bird-like dinosaurs nesting on the nearby plain. Now, tiny pieces of those fossil egg shells offer new evidence about how dinosaurs lived, bred and evolved into birds.
A new study shows emu-sized, meat-eating troodons were as warm-blooded as birds, with body temperatures of more than 40 C. But unlike modern birds such as chickens that can produce one egg a day, troodons used a very slow egg-forming process similar to the one used by reptiles like crocodiles.
That supports a previous hypothesis that nests found containing up to two dozen eggs were shared by multiple troodons, similar to the way ostriches share communal nests today.
READ MORE https://www.cbc.ca/news/science/dinosaur-egg-shells-1.6799550