Quick Take Paedophryne amauensis, a frog found in Papua New Guinea, is one of the smallest vertebrates in the world.

Add Yahoo as a preferred source to see more of our stories on Google. Not all great adventures come with sprawling landscapes and endless borders. Some of the most fascinating places on Earth fit ...

Although best known for its religious landmarks, Vatican City functions as a fully operating city with a surprising range of ...

Scientists from the University of Pennsylvania (Penn) and the University of Michigan have created the world's smallest autonomous and programmable robots. Each measuring about 200 micrometers wide – ...