Ancient skulls bearing a single eyeball socket have been found in limestone caves in the hinterlands of Bohol, Bukidnon and Agusan, reports said.

"The existence of the skulls, which resemble those of the cyclops, a race of giants in Greek mythology with a single eye in the middle of the forehead, has triggered speculations that one-eyed ancient settlers once roamed the country’s southern islands.

Tribal folklore maintain there were two races of giants in ancient times — the kapre who were associated with evil, and the one-eyed giants whom early settlers regarded as their heroes."

Not a cyclops, says zooarcheologist [ archived ]