Why Olive Ridley Turtles Travel Hundreds of Kilometres to One Spot in the Ocean

Far out in the Bay of Bengal, to the east of Sri Lanka, the ocean rearranges itself every year. The surface seems ordinary. But beneath it, cold, nutrient-rich waters rise, pushing upwards like a swelling dome. For a brief window between May and September, this patch of sea turns into one of the most active feeding zones in the Indian Ocean. Scientists call it the Sri Lanka Dome. And for Olive Ridley turtles, it has become a destination. Recent satellite tracking has revealed that turtles nesting along India’s eastern coastline are not dispersing randomly into the ocean, as once believed. T...