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Why do some animals adopt other animals' young?Adoptions in the animal kingdom may confer an evolutionary advantage, but other factors — such as empathy, the urge to care for babies and inexperience — could also contribute.
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Male monkeys on tiny island have way more sex with each other than females, scientists discoverThe rhesus macaques on Cayo Santiago that engaged in same-sex behavior were also found to have more babies, indicating an evolutionary advantage.
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What did the last common ancestor between humans and apes look like?Did our last common ancestor swing from trees or walk on all fours in the savanna?
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Zoo monkey eats her baby's corpse after carrying it around for daysThe mother repeatedly tried to catch the dead infant's gaze before throwing the corpse around her enclosure and eventually devouring it.
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See the moment a 28-year-old lab chimp glimpses the open sky for the 1st timeA heartwarming video shows a 28-year-old captive chimpanzee finally seeing the sky.
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Amino acid taurine can slow aging in animals, but we don't know if it works in peopleExperiments suggest that taurine, an unusual amino acid, can extend some animals' life spans, but it's unclear if it would work in humans.
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Primates have been masturbating for at least 40 million yearsResearchers reconstructed the evolutionary origins of primate masturbation and found it was an ancestral trait that goes back to the ancestor of all monkeys and apes.
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Elon Musk's Neuralink 'brain chips' cleared for 1st in-human trialsBrain implants developed by Elon Musk's company Neuralink have been approved for human testing. The safety of the devices previously came under scrutiny following reports of "botched surgeries" in animal test subjects.
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Cockatoos join humans and chimps as only species that can use a set of toolsIn a series of new experiments, Goffin's cockatoos were able to use a set of different tools to complete complex tasks. The brainy birds can decide which gadget works best and carry their varied equipment around with them.
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