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EarthEl Niños came more often in Middle Ages
Analyses of layered sediments from a South American lake suggest that the worldwide warm spells known as El Niños occurred more frequently about 1,200 years ago, when Europe was entering the Middle Ages, than they do today.
By Sid Perkins -
PaleontologyForged fossil is a fish-eating fowl
Detailed analyses of Archaeoraptor, a forged fossil once thought to be a missing link between dinosaurs and birds, reveal that the majority of that fake comes from an ancient, fish-eating bird.
By Sid Perkins -
AnimalsMad Deer Disease?
Chronic wasting disease, once just an obscure brain ailment of deer and elk in a small patch of the West, is turning up in new places and raising troubling questions about risks.