Prague's 88 nature reserves threatened by invasive plant species

Cities are generally regarded as hostile for wildlife and urbanization a dramatic form of destruction of natural habitats. Still, they are far from dead zones. Their biodiversity may even exceed that of surrounding landscapes, ...

Learning to live in mountain lion country

Researchers at Stanford's Jasper Ridge Biological Preserve often encounter signs of mountain lion activity, from lion scat to the occasional deer carcass covered with leaves. But few have actually caught a glimpse of the ...

The cause of asteroid Scheila's outburst

(PhysOrg.com) -- A remarkable discovery was made by astronomers on 12 December 2010: an asteroid named Scheila had changed its appearance and looked more like a comet, complete with bright tail. An international team of scientists ...

Tracing the canals of Mars

In a remarkable discovery, images taken over the past five years by the High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA’s Mars Reconnaissance Orbiter, which circles Mars to photograph the planet, ...

Series of bumps sent Uranus into its sideways spin

(PhysOrg.com) -- Uranus’s highly tilted axis makes it something of an oddball in our Solar System. The accepted wisdom is that Uranus was knocked on its side by a single large impact, but new research to be presented ...

Moving forward, spin goes sideways

Building electronic devices that work without needing to actually transport electrons is a goal of spintronics researchers, since this could lead to: reduced power consumption, lower levels of signal noise, faster operation, ...

Taking the pulse of marine life in stressed seas

The Earth currently has more than 400 so-called "dead zones"--huge expanses of deep ocean that, because of human activities, become too oxygen-starved during the summer to support most life.

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