The ʻōhiʻa tree, with its companion lehua blossom, is found only in Hawaiʻi, and is the most common of our Islands’ native trees. It is the keystone of the Hawaiʻi forest, critical to the ecology of our watersheds and sacred in Hawaiian culture.
NOVA and National Geographic present exclusive access to a unique discovery of ancient remains. Located in an almost inaccessible chamber deep in a South African cave, the site required recruiting a special team of experts slender enough to wriggle down a vertical, pitch-dark, eight inch-wide passage.
Revel in the ethereal beauty of orchids and examine their exotic flowers, which are shaped for one purpose – to attract pollinators. Many use sex as a lure, impersonating a female bee or wasp.