Here’s a job requirement you don’t see every day in field service: whale watcher. For at-sea service techs, keeping a 24/7 lookout for nearby marine mammals has long been part of the daily to-do list thanks to global regulations banning harmful noise levels.

For a long time, human eyes were the tool of choice. Now comes the FIRST-Navy, an advanced infrared camera that uses thermal energy to survey the sea for signs of approaching marine mammals. An alarm alerts crews when it’s time to stop — then restart — work.

h/t Science Codex 

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