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Is your cat unhappy? It might have arthritis

Osteoarthritis is a common problem among cats but the symptoms can be hard to diagnose. A new pressure mat could make it easier to determine when a cantankerous cat is suffering from painful joints.

“Treasure trove” of Arctic research data now publicly available

Twenty years of Arctic research can help scientists around the world better understand climate and environmental change.

Phosphorescence aims to frighten

A new Swedish study determines a reason behind sparkling ocean bioluminescence.

Why do starlings dance in the sky?

Flocks of several hundred thousand starlings can fly swiftly in coordinated and mesmerising formations, even when trying to evade predator birds. Why do they do it, and more significantly, how?

Retiring the prototype kilogram

The kilogram is the last international measurement standard that relies on a precisely crafted physical object. This standard-bearer will soon be replaced by space-age measurements based on physical constants.

Be careful not to overfeed wild birds

It gives advantages to certain species but can make life – and survival – harder for others, warns an ornithologist.

Climate models have not “over-predicted” warming

A new study suggests that the Paris climate goal may not yet be a physical impossibility. Even if true, this does not mean that climate models are wrong, as some media outlets reported.

Where did Norwegian wolves originate — and are they hybrids?

A new look at the genetics of wolves in Norway is in the works. An initial look to establish where the controversial animals have come from hasn’t provided a definitive answer.

Mud from the Greenlandic seabed reveals a hidden past

Sea ice and bedrock shape key for glacier stability.

How the Greenland ice sheet fared in 2017

Scientists from the Danish Meteorological Institute and Polar Portal give the Greenland ice sheet its annual health report.

Scientists get to grips with a tricky liquid

They have studied exactly what happens when such a liquid solidifies and becomes glass.

Cold region ‘tipping point’ now inevitable in northern Europe

Profound changes can be expected in high-latitude environments regardless of climate change mitigation policies.

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