Evolution
The Nene evolved from the Canada Goose (Branta canadensis), which most likely migrated to the Hawaiian islands 500,000 years ago, shortly after the island of Hawaiʻi was formed. This ancestor is the progenitor of the Nene as well as the prehistoric Giant Hawaiʻi Goose and Nēnē-nui (Branta hylobadistes). The Nēnē-nui was larger than the Nene, varied from flightless to flighted depending on the individual, and inhabited the island of Maui. Similar fossil geese found on Oʻahu and Kauaʻi may be of the same species. The Giant Hawaiʻi Goose was restricted to the island of Hawaiʻi and measured 1.2 metres (3.9 ft) in length with a mass of 8.6 kilograms (19 lb), making it more than four times larger than the Nene. It is believed that the herbivorous Giant Hawaiʻi Goose occupied the same ecological niche as the goose-like ducks known as moa-nalo, which were not present on the Big Island. Based on mitochondrial DNA found in fossils, all Hawaiian geese, living and dead, are closely related to the Giant Canada Goose (B. c. maxima) and Dusky Canada Goose (B. c. occidentalis).
Read more about this topic: Nene (bird)
Famous quotes containing the word evolution:
“Like Freud, Jung believes that the human mind contains archaic remnants, residues of the long history and evolution of mankind. In the unconscious, primordial “universally human images” lie dormant. Those primordial images are the most ancient, universal and “deep” thoughts of mankind. Since they embody feelings as much as thought, they are properly “thought feelings.” Where Freud postulates a mass psyche, Jung postulates a collective psyche.”
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