Monday, May 7, 2018

Early humans in the Philippines now said to be 700,000 years old


Ang mga naunang tao sa Pilipinas ay kapareho lang ng pinagmulan ng mga naunang tao sa Asia mainland, malayo sa ibang lahi




This handout image obtained from the French Museum of Natural History on Wednesday shows an archaeologist at work at the site of an archaeological dig at Kalinga in the Philippines. Were early humans living in East Asia more than half-a-million years ago clever enough to build seafaring watercraft and curious enough to cross a vast expanse of open sea? | MNHN / THOMAS INGICCO / XGTY / VIA AFP-JIJI

Traces of early humans in Philippines 700,000 years ago raise question of whether they were seafarers
AFP-JIJI

PARIS – Were the early humans roaming East Asia more than half a million years ago clever enough to build seafaring watercraft and curious enough to cross a vast expanse of open sea?

This and other questions arise from the discovery in the Philippines of a butchered rhinoceros skeleton and the stone tools probably used to carve away its meat, researchers said Wednesday.

The find pushes back the arrival of the first Homo species on the island chain ten-fold to 700,000 years ago, they reported in the journal Nature.

Earlier archaeological clues from Luzon island — tools at one site, pre-historic animals remains at another — hinted at the presence of primitive human species, echoing the way Homo erectus and Homo floresiensis probably populated the Indonesian archipelago during roughly the same period.

But until now, the earliest confirmed evidence of hominins — the scientific term used to group modern and early humans — in the Philippines came from a single 67,000-year-old foot bone unearthed in the Sierra Madre Mountains.

“We had the extraordinary luck to find a nearly complete, disarticulated rhinoceros,” said Thomas Ingicco, a paleoanthropologist at France’s National Museum of Natural History and lead author of the study.

This handout image obtained from the French Museum of Natural History (MNHN) on Wednesday shows two cut flakes and a rib of a rhinoceros at the Kalinga site, all evidence of the presence of a hominkin 709 000 years ago, retrieved from the site of an archaeological dig at Kalinga in the Philippines. | MNHN / THOMAS INGICCO / VIA AFP-JIJI

Analysis of the bones from the extinct species — Rhinoceros philippinensis — left no doubt “that it showed ridges left by tools,” he said.

Some of the cut marks were made while removing flesh; others came from specialized tools designed to remove nourishing — and no doubt delicious — marrow.

Ingicco and his colleagues also uncovered the skeletal remains of other potentially tasty animals, including brown deer, monitor lizards, freshwater turtles and stegodons, extinct mammals combining elephant and mammoth features.

“We know that some species of human ate this rhino,” said Ingicco. “But we don’t know if they killed if first, or found the carcass.”

All told, the Kalinga site in northern Luzon’s Cagayan Valley yielded more than 400 bones and several dozen knapped — or chipped — tools, including 49 knife-like flakes and two hammers.

“This evidence pushes back the proven period of colonization of the Philippines by hundreds of thousands of years,” the authors concluded.

Several dating techniques applied to the rhino remains determined its age at between 631,000 and 777,000 years, putting it in a period known as the Pleistocene.

With no direct trace of the humans who butchered the animals, researchers could only speculate on who they were and how they got there.

Homo erectus — known to have wandered to present-day China and Southeast Asia up to million years ago — is one candidate.

It is also possible that the butchers of Kalinga had already evolved into a distinct subspecies, as likely happened to the “hobbit” of Flores, diminutive humans named for the Indonesian island where they were first found.

As for how “Kalinga Man” made it across what is today 1,000 km (620 miles) of open ocean between Luzon and mainland Asia, the authors doubt they fashioned a raft or other seaworthy vessel.

“The colonization could have happened ‘accidentally’ after a tsunami ripped up the coastline and created a temporary land bridge, a rare but documented phenomenon,” said Ingicco. - The Japan Times

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