An extinct pygmy sperm whale from the Pisco Formation of southern Peru, known from a fossil skull found in the mid-1990s in a horizon 6.3 to 5.6 million years old. The animal was about 2.7 m long and carried the most extreme facial asymmetry known in any cetacean, and possibly any mammal: both bony nostrils are shifted entirely to the left, and the snout angles down 31 degrees, the mark of a specialised seafloor feeder. Its name, huachafo, is Peruvian Spanish for bizarre or extravagant. News article: https://phys.org/news/2026-11-prehistoric-whale-reveals-extreme-skull.html