With over 1,400 known species, bats make up about one-fifth of all mammal species on Earth. Some are tiny, like the bumblebee bat of Thailand, weighing less than a penny, while others, like the ...

From the Etruscan shrew, a creature so light it could rest on your fingertip; to the bumblebee bat, the planet’s smallest ...

They are found on every continent and in every ocean, and range in size from tiny bumblebee bats to enormous blue whales. One reason for their success is the way they move. Mammals as a group use ...

In Myanmar, a scientist with Smithsonian’s Global Health Program examines the world’s smallest mammal, a bumblebee bat. Roshan Patel / National Zoo Earlier this year, when leading infectious ...