Four dozen tiny pupfish are swimming in a constructed habitat in a giant glass structure once meant to house humans.

A desert biome habitat at the University of Arizona now houses an endangered fish species known as the Sonoyta pupfish. The habitat is located in the university’s Biosphere 2, an earth and ...

Biosphere 2 started with eight scientists and a very ambitious experiment. Now, almost 35 years later, it's still being used for cutting-edge research. Scientists continue to use it to study Earth's ...

(THE CONVERSATION) From a distance, Biosphere 2 emerges from the cacti and creosote of the Sonoran desert like a gleaming oasis, a colony of glass and bright white structures. Despite being just ...

Ecologists studying the tropical forest biome in Biosphere 2 near Tucson, say it is very similar to being in a natural rainforest. Credit: Chris Richards/University of Arizona PHOENIX – Step inside ...