Carla Garcia

The International Union for Conservation of Nature considers the Scheepmaker's crowned pigeon (Goura scheepmakeri) vulnerable to extinction, due to demand for its meat and fanciful feathers. This one was photographed at the Kamla Nehru Zoological Garden in Ahmedabad, India.

In this visualization of water on the moon, blue areas represent water ice on the lunar surface. The data, from NASA’s Moon Mineralogy Mapper, shows that most of the surface ice on the moon is concentrated near the poles.

Citrus fruits are a natural source of vitamin C.