Hominid remains "hobbit" found on an Indonesian island have been subjected to archaeological disputes during these days.
Detailed analysis performed on a Homo floresiensis skull supports the theory that these human beings were the key to local evolution. The descendants of Homo erectus, with the passage of time, became More smalls to be consistent with the availability of food on the island.
These results are shown contradictory with the previous hypotheses, arisen after having found unusual remains in a cave, during 2003, by a team of Australian-Indonesian archaeologists.
The "hobbitsThey measured little more than a meter highThey weighed around 25 kilos and had a brain the size of a chimpanzee.
The discoveries have raised various questions such as:was H. floresiensis a different species? orhow it shares the planet with Homo sapiens? Yousuke Kaifu, from the National Museum of Nature and Science in Tokyo, has carried out a study on skulls, concluding that the size and characteristics correspond to a reduced descendant of Homo erectus, which was the first human being to leave Africa.
The decrease in the size of the new species is known as a phenomenon called “insular dwarfism”, Well known among biologists. Contrary to what the researchers expected, it is thought that it is possible that Homo erectus migrated to a solitary island and, due to evolution, a series of changes took place that resulted in Homo floresiensis marked by dwarfism due to the coexistence on the island.
Two other theories have been put forward to explain this event. One of them explains that they existed long before and were descendants of Homo habilis, but it has not been proven that this evolutionary branch reached Asia. The other theory argues that the bones belong to Homo Sapiens and that were victims of a neurological disability due to a diet low in iodine, which would cause their brains to dwarf, but if so, the intelligence with which they killed animals, used tools or cooked their prey would not be explained.
Here is the link to an interesting study on the size of the brain of Homo floresiensis and its evolutionary implications (in English), published by the Royal Society Publishing.
I was born in Madrid on August 27, 1988 and since then I started a work of which there is no example. Fascinated by both numbers and letters and a lover of the unknown, that is why I am a future graduate in Economics and Journalism, interested in understanding life and the forces that have shaped it. Everything is easier, more useful and more exciting if, with a look at our past, we can improve our future and for that… History.