Science Top StoriesPakistani scientists discover million-year-old stegodon tusk in PunjabTNT DeskFebruary 16, 2016 by TNT DeskFebruary 16, 2016 LAHORE: A team of Pakistani researchers have unearthed a 1.1 million-year-old stegodon tusk in Punjab, potentially shedding new light on the mammal’s evolutionary journey....