Indonesia’s contribution in tracing the human ancestor

Since Darwin’s postulated the origin of the human species from an ape-like ancestor, the search for the missing link between ape and human had begun. In 1887, Eugene Dubois traveled from the Netherlands to Indonesia to search for the missing link. He eventually discovered human fossils in Wajak, Kedungbrubus, and Trinil to which he named Pithecanthropus erectus. The research was then continued by Ter Haar (1931) in Ngandong, Dujfyes, and his assistant, Andoyo (1936) in Perning, Mojokerto, and Von Koenigswald (1936-1940) in Sangiran, who successfully discovered many Homo erectus fossils. Since the 1960s, Sartono (ITB), T. Jacob (UGM), and Geological Research and Development Centre (Indonesia) continue the study, adding the collection of the specimens. Collaboration with the National Museum of Science and Nature, Tokyo concluded that Indonesian Homo erectus went through local evolution instead of static evolution condition. Indonesia is rich in natural resources and environmental conditions that were suitable for the evolution of early humans as shown by the discovery of several Homo erectus skeleton fossils that were not found in most other countries. This is a blessing left by early humans to us.

Gledswood Shelter 1: Initial radiocarbon dates from a Pleistocene aged rockshelter site in northwest Queensland

Like elsewhere in Australia, the archaeology of northwest Queensland has focused on the antiquity of occupation and the continuity of that occupation through the Last Glacial Maximum (LGM), in an attempt to better understand the adaptive capabilities and strategies of early humans. Veth (1989, 1993) has hypothesised that the northwest Queensland savannah, as an important ‘corridor’ for the colonisation of Australia (e.g. Bird et al. 2005; Horton 1981), should contain ‘early’ sites; and furthermore that with the climatic deterioration associated with the LGM, such sites should fit one of two patterns: (1) they will be abandoned and display a cultural hiatus; or, (2) if located in resource-rich zones within catchments (‘local refuges’), they will continue to be utilised, though subsistence strategies will be modified to rely more heavily on locally available resources. The northwest Queensland sites of Colless Creek at Lawn Hill (Hiscock 1984, 1988), and GRE8 near Riversleigh (Slack 2007:218-251; Slack et al. 2004), both fit the second pattern, i.e. persistent occupation through the LGM with altered strategies to cope with increased aridity. However, outside these local refugia, sites pre-dating the LGM have not yet been located in the northwest Queensland savannah. For example, Mickey Springs 34 (Porcupine Gorge) provides evidence for human occupation from c.10,000 BP (Morwood 1990, 1992, 2002) and Cuckadoo Shelter in the Selwyn Ranges (Davidson et al. 1993) provides a near basal date of 15,270}210 BP; Veth (1989:87) argued that such sites reflect the post-LGM expansion of groups from refuges. The evidence available to date raises the question as to whether the wider northwest Queensland savannah corridor was indeed occupied in the pre-LGM period, when rainfall levels were higher and there was greater availability of surface water and food resources (cf. Hiscock and Wallis 2005).

Hyaenas and early humans in the latest Early Pleistocene of South-Western Europe

Throughout the Pleistocene, early humans and carnivores frequented caves and large rock-shelters, usually generating bone accumulations. The well-preserved late Early Pleistocene sedimentary sequence at Cueva Negra del Estrecho del Río Quípar (CNERQ) has provided substantial evidence concerning the behavioural and adaptive skills of early humans in Western Europe, such as butchery practices, lithic technology or tending fire, whilst also bearing witness to the bone-altering activities of carnivores. Recent fieldwork has allowed the re-examination of the spatial and taphonomical nature of the macrofaunal assemblage from the upper layers of Complex 2. These layers are somewhat different from most of the underlying sequence, in showing quite a high representation of cranial and post-cranial bones of large mammals, including several Megaloceroscarthaginiensis antlers. The presence of Crocuta sp. at Cueva Negra represents one of the earliest instances of this genus in Western Eurasia. Identification of several juvenile Crocuta sp. remains alongside coprolites and bones with carnivore damage, indicates sporadical hyaenid denning activity. Furthermore, the presence of bones with percussion and cut-marks near to several hammerstones suggests a clear albeit limited anthropogenic input. We interpret the available taphonomical and spatial evidence from these layers as reflecting a multi-patterned palimpsest, likely representing the non-simultaneous and short-lived co-existence of hyaenas, humans, and other small carnivores in the Cueva Negra palaeolandscape during the final phase of sedimentation preserved at the site.

Tools and food on heat lamps: pyrocognitive sparks in New Caledonian crows?

Fire has substantially altered the course of human evolution. Cooking kindled brain expansion through improved energy and time budgets. However, little is known about the origins of fire use and its cognitive underpinnings (pyrocognition). Debates on how hominins innovated cooking focus on archaeological findings, but should also be informed by the response of animals towards heat sources. Here, we report six observations on two captive New Caledonian crows (Corvus moneduloides) contacting heat lamps with tools or placing raw food on them. The tools became singed or melted and the food had browned (and was removed). These results suggest that New Caledonian crows can use tools to investigate hot objects, which extends earlier findings that they use tools to examine potential hazards (pericular tool use), and place food on a heat source as play or exploration. Further research on animals will provide novel insights into the pyrocognitive origins of early humans.

How to Put the Cart Behind the Horse in the Cultural Evolution of Gender

In The Origins of Unfairness, Cailin O’Connor develops a series of evolutionary game models to show that gender might have emerged to solve coordination problems in the division of labor. One assumption of those models is that agents engage in gendered social learning. This assumption puts the explanatory cart before the horse. How did early humans have a well-developed system of gendered social learning before the gendered division of labor? This paper develops a pair of models that show it is possible for the gendered division of labor to arise on more minimal assumptions.

Steak tournedos or beef Wellington: an attempt to understand the meaning of Stone Age transformative techniques

Research into human uniqueness is gaining increasing importance in prehistoric archaeology. The most striking behaviour unique to early and modern humans among other primates is perhaps that they used fire to transform the properties of materials. In Archaeology, these processes are sometimes termed “engineering” or “transformative techniques” because they aim at producing materials with altered properties. Were such transformative techniques cognitively more demanding than other tool making processes? Were they the key factors that separated early humans, such as Neanderthals and early Homo sapiens, from other hominins? Many approaches to investigating these techniques rely on their complexity. The rationale behind this is that some techniques required more steps than others, thus revealing the underlying mechanisms of human uniqueness (e.g., unique human culture). However, it has been argued that the interpretation of process complexity may be prone to arbitrariness (i.e., different researchers have different notions of what is complex). Here I propose an alternative framework for interpreting transformative techniques. Three hypotheses are derived from an analogy with well-understood processes in modern-day cuisine. The hypotheses are about i) the requirement in time and/or raw materials of transformative techniques, ii) the difficulty to succeed in conducting transformative techniques and iii) the necessity to purposefully invent transformative techniques, as opposed to discovering them randomly. All three hypotheses make testable predictions.

Animism and Language Evolution

The exact mechanism of the evolution of language remains unknown. One of the central problems in this field is the issue of reliability and deceit that can be characterized in terms of honest signaling theory. Communication systems become vulnerable to dishonesty and deceit when there are conflicting interests between the signaler and receiver. The handicap principle explains how evolution can prevent animals from deceiving each other even if they have a strong incentive to do so. It suggests that the signals must be costly in order to provide accurate and reliable communication between animals. Language-like communication systems, being inherently vulnerable to deception, could only evolve and become evolutionarily stable if they had some mechanisms that can make the communication hard to fake and trustworthy. One of the theories that try to solve the problem of reliability and deception is the ritual/speech coevolution hypothesis. According to this theory, hard-to-fake rituals evolved concurrently with language - by reinforcing trust and solidarity among early humans and preventing deceitful and manipulative behavior within the group. One of the drawbacks of this hypothesis is that the relationship between ritual and speech is too indirect. Rituals could not have a real-time effect on every instance of speech and encompass all aspects of everyday language communication. Therefore they are not efficient enough to provide instant verification mechanisms to guarantee honest communication. It is more likely that the animistic nature of language itself, rather than ritual, was the handicap-like cost that helped to ensure the reliability of language during its origin. The belief in the parallel dimension of animistic spirits emerged concurrently with language as a hard-to-fake attestation mechanism that ensured inviolability of one's speech. The notion that animism emerged because of early behaviorally modern humans’ incoherent and flawed observations about the natural world is unlikely, because it implies a very improbable scenario, that there had been a more coherent and rational pre-animistic period which later degraded to animistic one.

A Reality Based on Consciousness

"This paper addresses the central idea of nonlocal consciousness: that all life is interconnected and interdependent, that we are part of a matrix of life, but even more fundamentally than spacetime itself arises from consciousness, not consciousness from spacetime. It is not a new idea. The excavation of burials dating to the Neolithic (≈ 10,200-2,000 BCE) has revealed that early humans had a sense of spirituality and some concept about the nature of human consciousness. It discusses the bargain made between the Roman Church, and the emerging discipline of science in the 16th century, one taking consciousness (packaged as “spirit”), the other spacetime, and how this led to physicalism taking root as a world view and becoming the prevailing materialist paradigm. It describes the emergence of a new paradigm that incorporates consciousness and lays out the four relevant descriptors helping to define what this new paradigm will look like. They are: • Only certain aspects of the mind are the result of physiologic processes. • Consciousness is causal, and physical reality is its manifestation. • All consciousnesses, regardless of their physical manifestations, are part of a network of life which they both inform and influence and are informed and influenced by; there is a passage back and forth between the individual and the collective. • Some aspects of consciousness are not limited by the time/space continuum and do not originate entirely within an organism’s neuroanatomy. "

Opiates Possibly Boosted Human Civilization

: Testosterone is a fundamental biological drive for human survival. Evidence documents an association between the evolutionary suppression of testosterone and the civilization processes, especially their socialization and family colonization abilities, among early humans. Interestingly, opiates suppress testosterone as a side effect. However, in clinical practice, clients undergoing opioid substitution therapy have subnormal, normal, or even above-normal testosterone. This paper discusses a possibility indicating that opiates promoted civilization processes among early humans. We further suggest that modern humans might have inherited the positive impact of opiates on early humans as a biological propensity for using opioids. Some users may use opioids for self-medication to decrease their extraordinarily high testosterone levels.

RADIOCARBON AGES OF SUYANGGAE PALEOLITHIC SITES IN DANYANG, KOREA

ABSTRACT The Suyanggae archeological complex is located in Aegok-li, Danyang County, Chungbuk Province, Korea (128°20'00"E, 365˚7'15"N, elevation 132 m). We investigated two Suyanggae Paleolithic localities (1 and 6). A total of 31 samples (18 localities) were analyzed for radiocarbon (14C) ages in three paleolithic cultural horizons of Suyanggae Locality 6 (SYG-6). The purpose of this paper is to report all dating results of SYG-6. It was found that ranges of 14C ages (BP) of cultural layers of SYG-6 are known to be 17,550 ± 80 ∼ 20,470 ± 70, 30,360 ± 350 ∼ 44,100 ± 1900, and 34,870 ± 540 ∼ 46,360 ± 510 BP for cultural layers 2, 3, and 4, respectively. We compared these age data with those of the previous study associated with Gunang Cave near Suyanggae Locality 1 (SYG-1). Based on the chronological information of the three archaeological sites, early humans lived in a rather cold environment from approximately 30,000 to 46,000 BP and disappeared between 30,000 ∼ 20,000 BP and then settled again in SYG-6 site during LGM period. This study demonstrates that archaeological study is important not only for understanding human occupations with their cultural development but also establishing climatic signals to which they have been adapted as a part of the human evolutional process.