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Health & MedicineFirst brain image of a dream created
Feat opens the door to probing the stuff of nocturnal dramas.
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Cornell project brings peregrines back to the eastern United States
With a little help, peregrine falcons make a comeback from the devastating effects of DDT.
By Science News -
Letters
Defining the human species Having read “Humans benefited by interbreeding” (SN: 10/8/11, p. 13), I wonder if I have missed what, to me, seems a major change in the definition of “species.” I was taught that the attempted crossbreeding of animals of two different species could result in either no offspring or sterile offspring. If […]
By Science News -
SN Online
LIFE Cycads, often called “dinosaur plants,” aren’t so ancient after all.