Wolf Volcano Galapagos Giant Tortoise Chelonoidis (niger) becki

There are 5 separate populations of Galapagos Giant Tortoise native to the largest island, Isabela, and general acceptance that the most northern population around the Wolf Volcano (C. (n.) becki) are sufficiently genetically different from the four populations further south to be a separate subspecies, if not species.

It is said the Wolf Volcano population resulted from a separate colonisation event and source (from Santiago Island rather than Santa Cruz Island).