Deep in the cloud forests of Central America, two species of singing mice put on a high-pitched opera to mark their territory.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/NqXnCqybuT8" height="1" width="1"/>
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Deep in the cloud forests of Central America, two species of singing mice put on a high-pitched opera to mark their territory.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/NqXnCqybuT8" height="1" width="1"/>