Search our collection of background (non-event) articles from news media, science journals and other sources.
Scientists are studying the diets of the oceans’ top predators as they change in response to their environments. This is because how much and what they eat can affect how ecosystems function.
All the birds were gone. Now there is full life in the bird cliffs again. The researchers believe they have found the explanation for the mystery.
The region of Catalonia, northeastern Spain, is in its worst drought since measurements began. The sheep reservoir supplies water to the city of Barcelona.
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