Biologging

　A small recording instrument,/which is called a data logger,/is attached to animals.// Carrying the logger,/the animals collect data/in the natural environment.// Biologging has developed/since the 1980s.// Japan now leads the world/in this new technology.//
　The data logger has realized the dream of studying the behavior of aquatic animals,/such as penguins or seals.// Before,/we couldn’t track them/once they dived into the sea.//


　In 2017,/five sea turtles with data loggers/were released into the Arafura Sea.// When they dived for food,/the data loggers recorded the sea temperatures.// When they came up to breathe,/the data was sent to the research center/through a satellite.//
　The turtles dived repeatedly/to a depth of over 100 meters/for about three months.// It was this project/that revealed both sea turtle behavior and accurate sea temperatures.//


　Oceans cover almost 70% of the earth’s surface.// So,/it is extremely important/to record water temperatures precisely.// This will help prevent/weather disasters and global warming.//
　What science has revealed/is amazing/and many facts are still to be discovered.// The smaller the data loggers become,/the more they will be used/with a wider range of animals.// Biologging will evolve.// This will allow us/to obtain more valuable data/about animals and the natural environment.//