Newborn sea turtles have an innate instinct, one that drives them toward the ocean. But they have only 24 hours to reach the water’s edge, and in that so-called “frenzy,” about half don’t make it. Some are drawn toward land by lights from nearby buildings and streets. That disorientation became the focus of a first-of-its-kind study by researchers at Florida Atlantic University. Using tiny treadmills, scientists measured oxygen consumption, heart rate, breathing and stroke rates — how fast hatchlings were paddling their flippers. They expected the turtles to be tired, but the babies conserved energy for the swim by crawling and resting. Still, more time on the beach increases their chances of being eaten or harmed. The study provides support for lighting ordinances during hatching season. It involved 150 hatchlings, all released back into the ocean soon after they were collected from their nests.