At least 27 human species have walked the Earth, but only our lineage survived. Our ancestors may have crossed a cerebral Rubicon that led to babies being born “early”
The most important people may not be on the stage but in the audience. Without social media, a big national march connected activists and culminated the protest. “Nowadays ... protest becomes the beginning of a movement rather than the end.”
Genomic sleuthing can determine how many generations have passed since a hybridization event. The oldest human genomes ever sequenced reveal that our Neandertal ancestry came from one “pulse” of interbreeding and pins down the timing.
New research argues that after peaches were introduced by Europeans, they spread across the eastern U.S. with the help of Indigenous peoples who structured the ecology and the land to be appropriate for peaches to grow and they tended the plants.
Scientific American Editorial Board
Scientific American
In rejecting facts to please their political party—and their patrons—the justices of the Court’s majority have broken their oath, made to both the Constitution and the American people.
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