If a prize were being handed out for the world's cutest creature, the Siberian flying squirrel could easily win. These large-eyed tree-dwellers could come from a Disney film with their large eyes and, seemingly, expressive features. Photographer Masatsugu Ohashi captured these images of the tiny animals on the Japanese island of Hokkaido.
The smallest hummingbird, Bee Hummingbird or Zunzuncito (Mellisuga helenae), is a species of hummingbird that is endemic to Cuba and Isla de la Juventud. Wikipedia says it grows to 5-6 cm and is not only the smallest hummingbird, but it's also the smallest bird in the world.