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Nature

Archeologists burn pigs to investigate historical mystery

Archeologists are puzzled by the fact that bone remnants from children and infants are almost never unearthed from ancient funeral pyre sites.

Oceans drive climate change

Researchers say that changes in the climate can be traced in the ocean hundreds of years before there is any trace of it in the atmosphere.

Plant sap is twice as sweet as cola

A new study has looked at how sweet plant juice needs to be to give the plant the optimal energy yield. Ideally, it should be twice as sweet as cola.

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.