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427 This artist's reconstruction depicts the kind of bird likely to survive the asteroid's fiery aftermath. PHILLIP M. KRZEMINSKI Quaillike creatures were the only birds to survive the dinosaur-killing asteroid impact By Elizabeth Pennisi | May. 24, 2018, 11:05 AM Scientists have long wondered just how many birds survived the asteroid impact that wiped out the rest of the dinosaurs some 66 million years ago. Now, they may have their answer: very few, mostly small ones. A new study suggests that widespread forest fires made it impossible for tree-dependent birds to survive, meaning the vast avian diversity of today likely arose from just a few ground-dwelling survivors. Not everyone agrees with this scenario, but Daniel Ksepka, a paleontologist at the Bruce Museum in Greenwich, Connecticut, calls it an "elegant" hypothesis. "It's nice, kind of a eureka moment." Molecular biologists and paleontologists have long debated the origins of bird diversity. Some argued, based on molecular data, that many groups of birds emerged unscathed from the asteroid impact in Chicxulub, Mexico, that killed off so many other species. However, more recent molecular evidence, combined with fossil finds, has convinced others that most bird groups did perish. Those researchers argue that the vast array of bird shapes, sizes, and lifestyles emerged quickly, after the great extinction event. This is fine.

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Quaillike creatures were the only birds to survive dinosaur-killing impact


Uploaded by Jill Jun 07, 2018 at 07:40AM EDT

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CROW @cR0w@infosec.exchange I love that the Forest Service accidentally dropped a new This Is Fine image. ALT 24 août 2024, 05:31 293 boosts 424 favoris
yandere-daydreams Follow 12h ago hey so my workplace is on fire i was kinda mad at first but on second though very anticapitalist avantgarde actually. maybe we stan. just a little tho. ONL thenotherkid 1m ago
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This Is Fine - Quaillike creatures were the only birds to survive dinosaur-killing impact

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Uploaded Jun 07, 2018 at 07:40AM EDT

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This Is Fine

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dinosaurs, k-pg extinction, asteroid, this is fine, birds, evolution, biology, science

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