Science

Ecosystems follow two opposite trends

The American red swamp crayfish (Procambarus clarkii), native to northern Mexico and the southeast of the USA, is an example of a species that...

Obesity: More than a billion people affected worldwide

The number of people with obesity is increasing worldwide. © smartboy10/ iStock More and more children and adults are severely overweight. This is shown by...

Bioethanol from old baked goods

Stale bread could become an environmentally friendly fuel in the future. © Slimoche/ iStock In Germany, around 600,000 tons of baked goods are overproduced every...

“MeToo” already existed in the Middle Ages

Representation of the biblical story of Susanna, who is sexually harassed by two elders and falsely accused when she refuses. © Biblia Sancti...

Fish without sea

At first glance, carrot salmon cannot be distinguished from the animal version. And the replacement product also impresses in terms of taste. ...

Signal protects against impaling each other

Armed with spears, they rush through the water: How do striped marlins avoid hurting each other during their rapid group hunts on schools of...

Not every supposed northern light is a real aurora

A normal aurora (left) consists of glowing curtains of red, green and blue. An “enhanced aurora” (right) contains a thin, brighter layer that...

Photo of Bothriechis hussaini, yellow-black snake species

It is estimated that there are several million still undiscovered animal species living on our planet. Recently, however, this yellow-black snake species, Bothriechis hussaini,...

Soil life reacts surprisingly to warming

Soils in Iceland that have been warmed by geothermal activity have opened up special research opportunities for scientists. © C: Christina Kaiser ...

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