Nature


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Nearly half of long-haul flights at some of world’s busiest airports could face disruptions on the hottest days because of extreme heat under climate change toward the end of the century, a new study said Thursday. On hot days, flights experience weight restrictions. Focusing on five major aircraft at 19 of the world’s busiest airports,
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Just when we thought corvids couldn’t get any smarter, new research shows that ravens are just as capable of planning ahead of time as humans and apes. They can also barter and use tools better than apes, and display greater self-control than four-year-old children. The new findings show that planning for future events may have
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Decades ago, while Philip H. Lieberman was soaking in a bathtub and listening to the radio, he heard anthropologist Loren Eiseley ponder an evolutionary puzzle: Why couldn’t monkeys talk? Like us, they’re social primates, intelligent and certainly not quiet. Rhesus macaques grunt, coo, screech and scream. Infant macaques make sounds known as geckers.   Despite the grunting and geckering, though, no