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.

Reader support helps sustain our work. Donate today to keep our climate news free. All donations matched.

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.”

Grist thanks its sponsors. Become one.

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