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Episode 147 - Genetics

The Common Descent Podcast

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Those Stones Could Be a Sign of Dietary Variation

No specimen of jehlornus has ever been found with both seeds and gastrolets at the same time. So like a lot of modern birds, these early birds might have been shifting their diet throughout the year. They could be eating fruits when they were available, but then having to switch to other stuff at different times. Very cool. I had just never thought about no birds needing to shift diet and also needing to shift what they put in their gizzardye,. that birds have to swallow stones sometimes.

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