Scientists thought they had found the world's smallest frog just a month ago, when a researcher announced he'd found coin-sized amphibians in New Guinea. But psych! Those weren't the smallest frogs. This is the smallest frog. In fact it's the smallest vertebrate known to man.

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These guys are so weeny that the scientists who found them couldn't even see them at first:

Their high-pitched calls make them sound like crickets, and perhaps explorers have long mistaken them for insects. “It doesn’t sound like a frog at all,” says [researcher Christopher] Austin, who had no idea what was making the call when he first heard it. “After several failed attempts to find it, we ended up just scooping up a big handful of leaf litter where the call was coming from and putting it all in a clear plastic bag. We went through that bag leaf by leaf until we discovered the incredibly small frog making the call.”

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Think about what tiny kisses it would give, and what a tiny prince it would turn into!