Among the group of 25 female leatherback turtles tracked by scientists, Darwinia was the best diving sea turtle out of all. Scientists placed a simple transmitter on the back of the turtle and tracked them for over 5 years. The transmitter was powered by four lithium camera batteries.
The signal from the transmitter was sent to a satellite everytime when the turtle came up for an air.
Some of the turtles traveled over 10,000 miles (16,000 km) every year.
The leatherback sea turtle is the largest of all living sea turtles and the fourth largest modern reptile behind three crocodilians.
Leatherback turtles also have the most hydrodynamic body design of any sea turtle, with a large, teardrop shaped body.
It is estimated that approximately 98% of leatherback turtles have disappeared from the Pacific Ocean for the last 40 years.