Twilight zone at risk from climate change

Life in the ocean's "twilight zone" could decline dramatically due to climate change, new research suggests. The twilight zone (200m to 1,000m deep) gets very little light but is home to a wide variety of organisms and billions ...

Analyzing the fat of killer whales reveals what they eat

Scientists are studying the diets of the ocean's top predators as they change in response to their environments. This is because how much and what they eat can affect how ecosystems function.

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