/u/Team_Ed's posts in /r/askscience

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Is there an evolutionary reason behind deciduous trees’ vibrant fall colours?

329 upvotes

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Were dromaeosaurs like velociraptor secondarily flightless, and all that implies?

4 upvotes

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What is the status of the “birds came first” theory of dromaeosaurid dinosaur (raptor) origin?

1 upvotes

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Why did so many of the largest dinosaurs of their kind live right up to the KT extinction?

1 upvotes

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What came first, ribosomes or DNA?

1 upvotes

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When and how did fur evolve?

1 upvotes

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Why don’t archaea cause diseases?

1 upvotes

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What did the equivalent of a grassland landscape look like before grass evolved?

1 upvotes

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How strong is the Bernoulli effect in creating lift v. air simply being deflected downward?

1 upvotes

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Why do some, but not all, deciduous trees produce vibrant fall colours?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Is there an evolutionary reason behind deciduous trees’ vibrant fall colours?	329
Were dromaeosaurs like velociraptor secondarily flightless, and all that implies?	4
What is the status of the “birds came first” theory of dromaeosaurid dinosaur (raptor) origin?	1
Why did so many of the largest dinosaurs of their kind live right up to the KT extinction?	1
What came first, ribosomes or DNA?	1
When and how did fur evolve?	1
Why don’t archaea cause diseases?	1
What did the equivalent of a grassland landscape look like before grass evolved?	1
How strong is the Bernoulli effect in creating lift v. air simply being deflected downward?	1
Why do some, but not all, deciduous trees produce vibrant fall colours?	1