Distantly-related animals all avoid a common "smell of death" that has a long evolutionary history, scientists discover. ![]() | ![]() | For the first time, scientists spot and film the songbirds killing and eating hibernating bats in a cave in Hungary. |
![Tongue louse](http://newsimg.bbc.co.uk/media/images/40753000/jpg/_40753030_louse_66.jpg)
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