Sharks could serve as ocean watchdogs
Tagged with sensors, toothy fish gather weather and climate data in remote Pacific
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/02/Hammerhead_free.jpg?fit=860%2C460&ssl=1)
GO FISH Fashioned with sophisticated sensors, hammerhead sharks (shown) can collect valuable data for weather and climate simulations as they take deep nightly dives and long trips through the Pacific.
Barry Peters/FLICKR