Galapagos Island Volcano Erupts, Threatening Fragile Ecosystem

Wolf volcano hasn't erupted in 33 years.

The volcano lies on the northern tip of Isabela Island, the archipelago's largest.

Authorities said no tourist activity was affected – and for now, lava flowing in the southwest direction poses no risk to the world's only population of pink iguanas, which live on the island's northwest tip.

Darwin visited the eastern Pacific island chain in 1835, and the trip influenced his findings presented in the book “The origin of Species.”

The Associated Press contributed to this report.