Virus carrying DNA of black widow spider toxin discovered

A tiny virus that may sting like a black widow spider. That is one of the surprise discoveries made by a pair of Vanderbilt biologists when they sequenced the genome of a virus that attacks Wolbachia, a bacterial parasite ...

Some birds listen, instead of look, for mates

Looks can be deceiving, but certain bird species have figured out that a voice can tell them most of what they need to know to find the right mate.

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