Despite their tiny size, poison dart frogs are one of the most toxic animals on earth. | National Geographic History

While the Glass Frogs' courtship may be brief, this male glass frog is no deadbeat dad. | National Geographic Animals

🔊SOUND ON 🔊 “The screaming tree frog (Litoria quiritatus) was just scientifically recognized, and I think the name is apt!” shared Nat Geo Explorer and conservation biologist Jodi Rowley. “I was very lucky to be part of the team that formally named this species and the slender bleating tree frog (Litoria balatus). The fact that we’ve discovered two new species to science, each of which occurs in such large cities, is remarkable, and demonstrates just how much we still have to learn about our f