It turns out that being able to count from zero is not a uniquely human skill. Among all animals, only monkeys, honeybees, and more recently, crows have been found to recognize the number zero ー a concept that very young children have trouble understanding. But how are we so sure? They were observed to confuse an empty set of objects with a set containing only one object more frequently than the a set containing two objects, suggesting that the animals likely think zero as next to one on the number line.
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With drug overdose deaths on the rise, authorities are attempting to curb the epidemic by tracking and sharing information in real time. In one unique effort, a nonprofit in New York City is using drug-testing equipment and stamping or marking habits of dealers to identify drug batches that may endanger users. Other approaches are also being used, such as monitoring drug-related chatter on Reddit and analyzing local wastewater for opioid and other drug levels. With the combination of these efforts, researchers hope to put a dent in the opioid crisis and reduce overdose deaths. Read full article here