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The Oceans

Fish migrate to avoid predators

Tagged fish reveal that animals migrate to avoid being eaten by predators.

Warm seas around Greenland may indicate cold European winter

Past changes in ocean currents around Greenland coincided with climate change in Northern Europe. The researchers behind the discovery suggest a possible ice-cold winter in Northwestern Europe.

Unusual find saved just in time

Paddles dating back to the Ertebølle culture in the Stone Age were recently found in Horsens Fjord, Denmark. They were close to being eaten up by the strong ocean currents.

How Vikings navigated the world

With no access to modern navigation instruments, Vikings relied on birds, whales, celestial bodies, chants and rhymes to navigate the seas and discover new land.

Getting Arctic raw materials requires a gentle hand

We must be very careful if we want to preserve the Arctic region’s special natural environment and culture while ensuring that the coming raw materials boom doesn’t turn into a disaster.

Mountains are younger than we think

A new study has shaved several million years off the age of mountain ranges following new evaluations of fossils and other impressions of ancient sea animals and plants.

Greenland is rising out of the sea

Melting ice is currently causing Greenland to rise by 3 cm a year. This rate is accelerating, and if the entire ice sheet is to disappear, the island would rise about one kilometre, new GPS readings reveal.

A warmer Arctic causes fish to move

The ice is melting away in the Arctic regions, while precipitation is on the increase. The fresh water forms a lid over essential nutrients in key areas of the Arctic Ocean, and that can change marine life dramatically.

Modern plate tectonics arose 3.2 billion years ago

Plate tectonics – geological developments that have given the Earth its current appearance, with oceans, continents, mountains and deep valleys – started 3.2 billion years ago, new research shows.

Bad news for greedy fishermen

New research in fish genetics makes it possible to determine the exact origin of any particular fish. This could make life difficult for fishermen who cannot stay away from endangered species.