![](http://static.ddmcdn.com/gif/blogs/dnews-files-2013-02-vampire-bat-130225-250x250-picture.jpg)
Bats in Peru that attack unsuspecting penguin chicks living in dark caves.
![](http://static.ddmcdn.com/gif/blogs/dnews-files-2013-02-bark-spider-web-200x200.jpg)
Using a single web of spider silk to halt an oncoming subway
train? No problem, say physicists, assuming you've got the right spider.
![](http://static.ddmcdn.com/gif/bear-250.jpg)
Switzerland's only recorded wild bear has been culled after fears that it could pose a threat to humans.
![](http://static.ddmcdn.com/gif/dinosaurs-long-necks-250x250.jpg)
Researchers found that light bones, air and the location of muscles, tendons and ligaments helped maximize length.
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