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Nature

Butterflies fly 3,500 km by compass

Monarch butterflies fly from Canada to Mexico using only an internal compass and the landscape to guide them. Now researchers can explain how.

Geophysicist: A Katrina hurricane will strike every two years

Increases in Earth’s average temperature will result in far more hurricanes in the future, new study reveals.

Fish migrate to avoid predators

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

Thunderclouds challenge laws of nature

Well-defined and detached clouds such as thunderclouds violate the laws of thermodynamics when it comes to the amount of precipitation.

Greenland’s cultural heritage threatened by climate change

Archaeologists estimate that Greenland has more than 6,000 sites with cultural monuments. Due to climate change, a significant part of these treasures may be under threat.

Tree physics determine leaf size

Danish Harvard researcher has found a link between the height of trees and the limit to how large or small their leaves can get.

Europe’s smallest beetle found in Denmark

Researchers have just found the first Danish specimens of Europe’s smallest beetle. It’s not much wider than a human hair.

Turning toxic vegetable refuse into nutritious animal feed

New research makes it possible to remove growth-inhibiting natural toxins from protein-rich waste products.

Bizarre penis shaved by scientists

The most terrifying penis in the animal kingdom has now been under the laser. Here, scientists found the answer to an evolutionary mystery.

Climate debate is based on religion

Religion plays a major part in the climate debate, for instance in our fight to preserve endangered species that have no practical use to humans, argues theologian in a new book.