Early on Monday, Wolf Volcano on Isabela Island — the highest volcano in the Galapagos archipelago — erupted for the first time in 33 years, according to the Galapagos National Park service.
The volcano is 5,500 feet above the sea at its peak, and is the home of the world's only population of pink iguanas. Their habitat is threatened by the eruption. Yellow iguanas and giant tortoises also live in the same habitat.
There are concerns that the eruption may have damaged these creatures' homes, which were studied by Charles Darwin and led in part to his theory of natural selection published in 1859 in "The Origin of Species."