Evolution Essay

547 WordsJun 10, 20123 Pages
Remains of the most recently discovered early human species, Homo floresiensis (nicknamed ‘Hobbit’), have been found between 95,000 and 17,000 years ago on the Island of Flores, Indonesia. H. floresiensis individuals stood approximately 3 feet 6 inches tall, had tiny brains, large teeth for their small size, shrugged-forward shoulders, no chins, receding foreheads, and relatively large feet due to their short legs. Despite their small body and brain size, H. floresiensis made and used stone tools, hunted small elephants and large rodents, coped with predators such as giant Komodo dragons, and may have used fire. The diminutive stature and small brain of H. floresiensis may have resulted from island dwarfism—an evolutionary process that results from long-term isolation on a small island with limited food resources and a lack of predators. This female’s head, like the rest of her body, was unusually small. Her brain was about a third the size of ours, but her species made and used stone tools, and hunted a variety of animals. The small body size of Homo floresiensis may have helped the species survive on an island with limited resources. Year of Discovery: 2003 History of Discovery: A joint Indonesian-Australian research team found LB-1—a the nearly complete female skeleton of a tiny human that lived about 18,000 years ago—in Liang Bua cave on the island of Flores, Indonesia. The skeleton’s unique traits such as its small body and brain size led scientists to assign the skeleton to a new species, Homo floresiensis, named after the island on which it was discovered. Since the initial find, bones and teeth representing as many as 12 H. floresiensis individuals have been recovered at Liang Bua—the only site where H. floresiensis has been found so far. The bulk of the finds related to H. floresiensis date between 95,000 and 17,000 years ago. Evolutionary Tree

More about Evolution Essay

Open Document