Meet the mini frogs of Madagascar – the new species we've discovered

The largest of these frogs could sit happily on your thumbnail. The smallest is just longer than a grain of rice.

20 frogs in one go - TU Braunschweig

Five tiny new frogs discovered in Madagascar

Technical University Braunschweig on The Conversation

Six of the world's smallest frogs discovered in Mexico

20 New Frog Species Found in Madagascar

Madagascar – News, Research and Analysis – The Conversation – page 3

Honey, evolution shrank the frogs! – Dr Mark D. Scherz

Newspaper articles about amphibians – Amphibienschutz

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Mini scule - Wikipedia

Shining like a diamond: A new species of diamond frog from northern Madagascar