Read Archie Carr's The Windward Road and So Excellent A Fishe!! The Windward Road is about his field studies as a herpetologist in the Caribbean in the 40s and 50s. So Excellent A Fishe is about early sea turtle research and conservation. They are both really entertaining and insightful. I really enjoyed reading about the first time they put a tracker on a turtle in the 60s and the struggles they had to deal with. They ended up tying a rope from the turtle to a float to which they tied a weather balloon with a radio transmitter. Turned out the transmitter had such short range that they could see the balloon before they could tap in on the transmitter.