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Marine animals

Acidic ocean water makes sea snails smaller

Sea snails prefer to be smaller when they are stressed by high CO2 levels.

Killer whales and walruses more closely related to wolves than each other

New study shows how some animals ended up looking very similar yet share almost none of the same genetic mutations.

Red listed species on Svalbard

Red List assessment has been conducted for five groups of species on Svalbard. Overall, 270 species of vascular plants, springtails, freshwater fish, birds and mammals were evaluated. Of these, 71 species were red listed, of which 47 are considered to be threatened.

An acidic ocean may mean less fish

Calanus makes up about 90 percent of the bottom of the food chain in northern oceans, and is eaten by fish and baleen whales alike, but as the ocean becomes more acidic, populations may decrease dramatically.

Spying on seals with videocams and sensors

Researchers are equipping seals with cameras and sensors to find out exactly what they do down in the deep blue sea.

How ancient squids survived extreme climate change

Scientists have uncovered how ancient squid-like animals survived dramatic climate changes not unlike those we see today.

Catching Atlantic cod in green light

Using fish pots and green light, Swedish fishermen want to prevent seals from stealing their catch.

Skagerrak prawn stocks on the rebound

For years catches of shrimp have been shrinking and fishermen have had good reason to be concerned about their livelihoods. But the crunch on these crustaceans in the Skagerrak seems to be letting up.

A bristle worm shuts the door on us

A small bristle worm, just a few centimetres long, suddenly decides to withdraw into its house, closing the door tightly behind it.

Counting copepod crap

A mind-boggling array of tasks forms the underpinning of our understanding of the factors that affect the climate, both now and as the planet warms. Danes aboard the Norwegian research vessel G.O. Sars are adding to this knowledge by counting specks of zooplankton faeces.