In 2016, Vignesh Kamath, a field ecologist, was studying frogs in the Kalakad Mundanthurai Tiger Reserve (KMTR) in Tamil Nadu. One day, he accidentally noticed a partially eaten carcass of a Nilgiri langur amidst the forest. Curious, Mr Kamath wanted to know which animal killed it. "I set up a camera trap in front of it, hoping the predator will return to feed on the...
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