Sperm whale 'clicks' help scientists understand behaviour

Scientists have recorded thousands of hours of "clicks" that sperm whales make to forage for food and communicate, helping them better understand the behaviour of one of the Southern Ocean's key predators.

Marine noise pollution stresses and confuses fish

Researchers at Newcastle University (UK) found that European sea bass experienced higher stress levels when exposed to the types of piling and drilling sounds made during the construction of offshore structures.

Swimming robot probes Fukushima reactor to find melted fuel

An underwater robot entered a badly damaged reactor at Japan's crippled Fukushima nuclear plant Wednesday, capturing images of the harsh impact of its meltdown, including key structures that were torn and knocked out of place.

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