Ocean

Filter-feeding mollusks respond to water pollution in a very detectable and measurable manner. With that fact in mind, scientists have created a water-quality-monitoring system that uses electronically augmented live mollusks as its sensors.

A technique originally developed to combat acid rain has the potential to pull an enormous amount of carbon dioxide out of the atmosphere – while helping to deacidify oceans, restore rivers and boost biodiversity and fish populations.

Geologists have drilled deeper than ever into material from the Earth’s mantle – more than three quarters of a mile. The sample gives a glimpse into the geology and even life in a deep world normally beyond our reach.

Researchers have prototyped sensor-packed robot bugs that mimic biological digestive systems to meet energy needs, employ a Janus interface for a steady supply of nutrients and move on the water's surface like a water strider.

Unpredictable monster waves at sea can severely damage ships and offshore platforms, putting the lives of those who work on them at risk. A new system out of the University of Maryland uses a neural network to provide valuable early-warning alerts.

While you're more likely to win the lottery than become a tasty snack for a great white, shark attacks have long been a real fear for beachgoers. While attacks and fatalities look to be on the rise, scientists are yet to pinpoint exactly why.

The Disney-esque hues on bluespotted ribbontail rays come from a unique arrangement of nanostructures, say researchers. The findings, along with those gleaned from studying blue sharks, could help lead to new chemical-free color techniques.

A single vertebra dug out of a rock in a stream below a New Zealand mountain in 1978 has been found to have belonged to the oldest sea reptile in southern waters, where no record of these huge beasts had existed. It dates back 246 million years.

A strange sea creature known as the salp reproduces asexually, building long chains of clones. Researchers have now decoded the way these long salp chains propel themselves, a finding that could lead to better propulsion systems for underwater vehicles.

French company Seabike has developed a swimming device that uses your own leg power to accelerate you through the water at superhuman speeds. This crank-driven pusher prop looks a bit like an underwater unicycle... We'd love to take one for a spin!

Scientists have discovered that audio recordings of healthy coral reefs may help attract free-swimming coral larvae to damaged ones. The finding could be a major step toward preserving the world's coral reefs.

If you want to gather climate-change data from the deep ocean, why not hitch a ride with an organism that's going down there anyways? That's the thinking which led to the creation of "biohybrid jellyfish" which pack two speed-boosting technologies.