Hominin Scavenging: Insights from ‘The Hobbit’ and Komodo Dragon Remains

Homo floresiensis

Homo floresiensis: The Hobbit of Flores Island

Lionel Brett/Eurelio/Science Photo Library

A recent study on animal bones found in caves has suggested that the diminutive ancient humans, often referred to as “Hobbits,” who resided on Flores Island in Indonesia until approximately 50,000 years ago, possessed limited hunting abilities. Researchers argue that they primarily scavenged meat left by Komodo dragons.

The fascinating fossil remains of Homo floresiensis were first introduced to the public in 2004. These small hominins stood just over a meter tall, and their fossils date back between 90,000 to 50,000 years.

Research based on stone tools and charred bones previously led scientists to believe these hominins exhibited advanced behaviors such as controlled fire use and large-game hunting. However, the cognitive capabilities of these small-brained beings have come under scrutiny in recent years.

According to Elizabeth Veatch from the Smithsonian Institution, “The prevailing view in our field suggests that despite their brain size, some advanced cognitive skills were necessary for reaching and surviving on the island amidst declining animal populations.”

Liang Bua Cave—home to the Homo floresiensis remains—also contains many fossils of a dwarf elephant species, Stegodon florensis insularis. Veatch and her team suspect many of these creatures may have fallen prey to the Komodo dragon, a sizable reptile endemic to Flores and other Indonesian lands.


To investigate the bite marks left by Komodo dragons on the bones of large mammals, Veatch and her colleagues conducted an experiment at Zoo Atlanta, feeding a dead goat to one of the reptiles. “Since Stegodon elephants are extinct, we couldn’t directly experiment with them,” noted Veatch.

The aftermath revealed that of the 72 bones examined, 26 bore 192 tooth impressions. The researchers compared these results to over 3,000 remnants of Stegodon found in Liang Bua Cave, alongside nearly 7,000 later Homo sapiens bones. Each of these approximately 10,000 bones was scrutinized for any evidence of fire exposure.

The study found that Komodo dragons prefer the meatiest parts of carcasses, such as hind and front legs. However, the bones associated with Homo floresiensis were found mostly in less desirable areas like the skull and thoracic vertebrae, suggesting a limited capacity for large animal acquisition.

Of the extensive collection of over 3,000 Stegodon bones, only one showed indications of fire exposure—likely due to sediment disturbance and heating from subsequent human activities. In contrast, 20% of recent rat bones uncovered after the extinction of these hobbits bore signs of cooking.

Adam Blum from Griffith University asserts, “Our findings strongly indicate that Homo floresiensis likely scavenged remains, rather than hunted Stegodon.”

Martin Poe from the University of Western Australia points out the controversy surrounding earlier claims of hunting and fire use by Homo floresiensis. “These new discoveries align more closely with our understanding of other small-bodied hominins, such as australopithecines. Their brain size and body weight support a shift in behavior patterns,” he added.

Nonetheless, a prevailing challenge remains: Did Homo floresiensis evolve from larger hominids like Homo erectus or from smaller, more widespread ancestors? Clarification through further research in Flores is essential.

Navigating this narrative reveals two possibilities, yet significant inquiries remain, emphasizing the necessity for continued exploration into the evolutionary adaptations of Homo floresiensis.

Topics:

  • Evolution of Humanity/
  • Ancient Humans

Source: www.newscientist.com

Ancient Sulawesi Tools Could Unravel the Origins of the “Hobbit” Hitori

Stone tools unearthed in Sulawesi, Indonesia, crafted by an enigmatic ancient human species

Budianto Hakim et al.

Seven stone tools discovered on Sulawesi, Indonesia, represent the earliest proof of ancient humans navigating the ocean, with an estimated age of 1.4 million years.

These artifacts may shed light on how a diminutive human species known as the “Hobbit” reached neighboring Flores Island.

The first artifact was found embedded in a sandstone outcrop at a location called Calio Budiant Hakim. In 2019, excavations revealed six additional tools on the same outcrop, courtesy of the Indonesian National Research Innovation Agency.

Alongside the stone tools, Hakim and his team also discovered parts of an upper jaw, teeth, and remains of a large species of pig, Celebochoerus, along with fragments from unidentified young elephants.

While researchers couldn’t date the tools directly, sediment analysis combined with fossil pig teeth allowed them to estimate an age range between 1.04 million and 1.48 million years. Previously, the oldest human evidence in Sulawesi was dated to 194,000 years ago.

A least one of the new artifacts appears to be a flake removed from a larger piece, with its edges skillfully shaped, as noted by team member Adam Blum from Griffith University in Brisbane, Australia. While non-human primates such as chimpanzees utilize hammer-like stones to crack nuts, they don’t manipulate flakes to create tools.

“This represents an early form of cognitive ability from a species that has since vanished,” states Brumm. “We don’t ascertain the specific species, but these creations indicate human intellect at the Calio site.”

The distinct hominin species, Homo floresiensis, was unearthed in Flores in 2003. Archaeological findings suggest human presence on the island over a million years ago. However, the means by which these early humans reached the island remains a mystery.

Both Flores and Sulawesi were separated from mainland Southeast Asia by expansive oceanic barriers, even during periods of the lowest sea levels. According to Blum, the distance to Sulawesi is too great for swimming, leading to the conclusion that these early human species likely could not construct maritime vessels.

“It’s conceivable that a rare geological event, such as a tsunami, swept some early humans into the ocean, where they might have clung to floating trees or mats of vegetation, eventually reaching these islands to form isolated populations,” he suggests.

Martin Porr from the University of Western Australia identifies Homo erectus as the most probable candidate for seafaring at that time, given similarities between the tools found in Sulawesi and those associated with this species.

While the new finds support this theory, they raise numerous questions, particularly regarding whether the skills of these early human groups may need to be reassessed.

Led by the late archaeologist Mike Morwood, the team who first identified Homo floresiensis was the first to propose that Sulawesi could be crucial in understanding the ancestry of the Hobbit. As Kira Westaway from Macquarie University in Sydney, Australia mentions, “Sulawesi is positioned along a significant current that flows from Sulawesi to Flores.”

“Even Mike would have been astonished by the discovery of these ancient stone tools,” she remarks. “Though one might argue that seven tools are insufficient to support major claims, they undeniably represent the presence of early human activities.”

Neanderthals, ancient humans, cave art: France

Join new scientist Kate Douglas as she embarks on a captivating exploration of the prominent Neanderthal and Upper Paleolithic sites across southern France, spanning from Bordeaux to Montpellier.

Topics:

Source: www.newscientist.com