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Animals

Fat makes pigs more social and less aggressive

A high-fat diet changes social behaviour, reveals new study. This should be considered when advising the public on nutrition, say researchers.

Reindeer mating – when it's good to be fat

Summer time is fattening time for reindeer bucks. If they fail to gain enough weight during these months, they can forget about mating in the autumn.

World’s fastest fish continues to impress

The sailfish is not only the world’s fastest swimmer. A new video reveals that its movements during hunting are the quickest ever seen in a marine animal.

Sperm whale language under scrutiny

A new project aims to decode the sperm whale’s communication system using the latest animal-borne acoustic technology.

Humans alone killed off the giant moa bird

New research reveals that the moa population were fit and healthy before humans started hunting the bird. In spite of this, it took less than 200 years before the gigantic bird had died out.

Map outlines global hotpots of bycatch intensity

Fishery bycatch poses a great threat to various endangered species, and to ecosystems in general. Scientists have now mapped out the problem.

Metabolism works differently than we thought

Kleiber’s law of metabolism, which states that the metabolic rate of an animal scales to the 3/4 power of the mass, has a flaw in it, argues Danish scientist.

How spiders weave their webs

Scientists have at last figured out what goes on when spiders spin their webs.

Animal origin theory challenged: Early animals needed almost no oxygen

The first animals on Earth could get by with much less oxygen than previously thought, new study reveals.

Why do headless chickens run?

The brain does not control all body movements. Some movements are to a great extent controlled by neural networks in the spinal cord. This is why a chicken can run away after you chop its head off. A new study takes a closer look at this strange phenomenon.

Pregnant and puffing on a smoke

Norwegian research shows that one out of four female smokers in Europe continue to smoke cigarettes during their pregnancies. Vivid differences are seen among the European countries in this regard.