Oceans

Robot penguins are exploring mysterious ocean currents
Emergency sea otters needed to save California’s kelp forests
US Airman, missing in action, located by underwater drones
This beach-cleaning robot is a Roomba for sand
Rarely seen glass octopus caught on film
Bomb detectors record rare pygmy blue whales singing
Radioactive plutonium from space found in Pacific Ocean
Transforming abandoned oil rigs into artificial reefs
Scientists brought to life 100-million-year-old bacteria
Underwater gliders could soon run off of the ocean’s changing temperatures