At last: Mysterious ocean circles in the Baltic Ocean explained

Are they bomb craters from World War II? Are they landing marks for aliens? Since the first images of the mysterious ocean circles off the Baltic coast of Denmark were taken in 2008, people have tried to find an explanation. ...

Conservation work in zoos is too random, scientists warn

The world's zoos work hard and spend enormous resources on the conservation of endangered species, but the resources are not always optimally spent. One big problem is international legislation and the need of more zoos to ...

Bats and whales behave in surprisingly similar ways

Sperm whales weigh up to 50 tons, and the smallest bat barely reaches a gram. Nevertheless, the two species share the same success story: They both have developed the ability to use echolocation - a biological sonar - for ...

Old concrete can protect nature

Usually we think of demolished concrete walls and floors as environmental contaminants, but in fact this material may turn out to be a valuable resource in nature protection work. This is the conclusion from researchers from ...

Researchers uncover that moths talk about sex in many ways

Moths are nocturnal, and they have one major enemy; the bat. As a defense many moths developed ears sensitive to the bat´s echolocation cries, and they have also developed different behaviors to avoid bats. Now it turns ...

page 15 from 16