CARTA - Anthropogeny (Audio)

Comparative Anthropogeny (CompAnth) is the study of distinctly human traits and characteristics in the context of comparisons with our closest living relatives, the “great apes.” This symposium, the third of CARTA's CompAnth series, will present a collection of distinctive human traits, ranging from molecular, cellular, and anatomical biology to behavioral, societal, and cultural features. Given t...

Human language is a strong contender for the title of most often named species-specific feature in the literature. But why is that? In this talk, Eva Wittenberg explores what we could mean by "human language", and how different conceptions of language inevitably lead to different answers about whether it is species-specific. While syntax is a central feature, it is only one of several, and the uni...

Human ovulation lacks visible signs, unlike chimpanzees and bonobos with conspicuous genital swellings during fertility. This led to the concept of "concealed ovulation," seen as a human adaptation. Proposed reasons include encouraging paternal investment, confusing paternity to deter infanticide, enabling secret mating and female choice, and reducing female rivalry. Many non-human primates also h...

Life history theory suggests that inter-birth intervals (IBIs) depend on a trade-off between maternal investment in current and future offspring, influenced by the mother's energy and somatic maintenance. Normally, IBI aligns with maternal and infant body size, larger relative infant size leading to slower breeding. In contrast, humans have relatively shorter IBIs due to cooperative breeding, supp...

High-altitude adaptation stands out as one of the most notable examples of evolution within our species. Despite similar challenges of decreased oxygen availability, human groups on different continents have followed unique evolutionary trajectories. I will discuss how genomic, molecular, and physiological discoveries reveal key insights into human-specific evolutionary changes, examine comparativ...

The human genome contains segments of DNA with non-human origins. This introgressed genetic material is remnants of mating events between early modern humans and their archaic contemporaries (e.g., Neanderthals and Denisovans). In this talk, Andrew Schork will review the evidence for such genetic material, its consequences on phenotypic diversity in modern humans, and discuss if this process - arc...

The most complex organizations in the living world beside those of humans are the colonies of ants. Mark Moffett will argue that points of comparison between sharply different organisms like ants and humans are exceptionally valuable to science, and indeed that modern humans are in many ways much more like certain ants than we are to our nearest relatives, the chimpanzees. He considers such issues...

Ethnology, also known as cross-cultural analysis or comparative anthropology, involves comparing features of historically documented human societies. It has historical ties to archaeology, with notable figures like Augustus Pitt Rivers and Lewis Binford being proponents. Despite this, it's not commonly seen as a vital archaeological tool. This talk argues for its importance, citing both theoretica...

Since humans split from their primate ancestors, their brains evolved with a larger mass relative to body weight, more cortical neurons, and distinct connectivity patterns. Human neurons mature more slowly, a trait known as neoteny, likely influencing these differences. Gene regulation, not new genes, may underlie species differences, particularly in the primate lineage. The role of these regulato...

We know Homo sapiens started in Africa, but we're uncertain about how they spread. Limited fossils and data have hindered our understanding. I'll discuss popular theories about our origins and how recent genetic data from Khoe-San people in southern Africa sheds light on this. Our research suggests a complex history, with population structures dating back to about 120,000-135,000 years ago. Early...

The human penchant for storytelling is universal, early-developing, and profoundly culture-shaping. Stories (folk tales, narratives and myths) influence the costs of social transactions and organize societies at every scale of human interaction. Story as a mode of communication is also unprecedented in the animal kingdom: although we are compelled to tell stories about other animals, they are not...

Animals and tricksters are highly prominent beings in the mythology of the San Bushmen of southern Africa, as well as of hunter-gatherers in other regions of the world. Their actions and interactions provide the plot lines for most of the stories people tell about myth time. Why are these two beings so preeminent in San mythology and storytelling? Is there a connection between the two beings? Math...

Political, financial and environmental crises coupled to the rise of social media have, in recent years, created a perfect storm of mis- and disinformation that leverage long standing reservoirs of belief within and across communities. These stories on social media mirror face-to-face storytelling and other storytelling environments in that they allow for the negotiation of cultural ideology (norm...

In the foundational texts of Western civilisation (the Bible, Iliad), plagues are symbols of divine retribution, signifying Godly displeasure with human misdeeds. But in Thucydides’ classic account of the mysterious plague that swept Athens in 430 BC, Camus’s La Peste, and Emily St John Mandel’s Station Eleven, literary accounts of plagues and pandemics are also morality tales and metaphors for th...

As the global response to climate change drives a profound reevaluation of our interaction with fire, there's a timely opportunity to delve into the roots of our connection with combustion. Archaeologist Michael Chazan uncovers early traces of human fire usage at Wonderwerk Cave in South Africa and Evron Quarry in Israel. Chazan contends that it's more apt to consider the emergence of a dynamic bo...

Humans have been telling stories about animals as long as humans have been telling stories. One story humans tell about animals is the one about how, with enough care and patience humans might one day listen to the stories animals themselves have to tell. Some folks see this story as nonfiction, a truth about animals manifest in the dance of bees, the grunts of monkeys, the antics of their dogs an...

The human penchant for storytelling is universal, early-developing, and profoundly culture-shaping. Stories (folk tales, narratives and myths) influence the costs of social transactions and organize societies at every scale of human interaction. Story as a mode of communication is also unprecedented in the animal kingdom: although we are compelled to tell stories about other animals, they are not...

The hunting hypothesis proposes that the dietary shift to meat procurement was the catalyst favoring a suite of transformative human biological and behavioral adaptations. Evolutionary changes in the human diet are associated with the emergence of food sharing, the division of labor and pooled energy budgets. To balance this discussion, I revisit several misconceptions linked to the hunting hypoth...

Some 350 to 400,000 years ago when our ancestors gained control of fire, the day was extended to provide many hours for social interaction, undisturbed by economic activities. How were those hours spent in societies that only had firelight after nightfall? In most preindustrial societies, music, dance, healing and storytelling fill the darkness. Myths and legends create common understandings on su...

Why are humans a compulsively storytelling species? Why especially do we invent stories, why do we tell one another stories that both teller and audience know to be untrue? Why do many of us come to believe some invented stories? What difference has our compulsion to tell stories made to us as individuals, societies, and a species? How do we understand stories so seemingly effortlessly? Series: "C...

For more than a century, folklorists have indexed a vast number of the world’s folkloric narratives according to varying structures (i.e. tale types) and to discrete elements (i.e. motifs) that commonly appear across cultures. This talk will introduce and analyze several examples of motifs indexed in folklorist Stith Thompson’s system. Ultimately, I ask whether stories about origins (human origins...

The origin of humans is a difficult scientific problem in evolution that is grounded in biology and molded by culture. Recent advances in neuroscience and artificial intelligence have led to synergies and surprising new hypotheses. Mysteries such as the origin of language and human sociality are being illuminated by these advances. This CARTA symposium will be explored by researchers at the fronti...

Pragmatics poses a headache to developers of artificial systems. But how did language evolve to efficiently relay so much pragmatic trickery? Eva Wittenberg presents a new paper that builds on the idea that grammar evolved gradually, and with it, pragmatics. We argue that the simpler a grammar is, the stronger the reliance on pragmatic inferences for many aspects of meaning, including even basic q...

Parallel Architecture is a theory of the mental representations involved in the language faculty. These representations are organized in three orthogonal dimensions or levels: phonology, syntax, and semantics, correlated with each other through interface links. Words are encoded in all three levels and serve as part of the interface between sound and meaning. In the representation of an entire sen...

Vocal learning is one of the most critical components of spoken language. It has only evolved several independent times among mammals and birds. Although all vocal learning species are distantly related and have closer relatives that are non-vocal learners, humans and the vocal learning birds have evolved convergent forebrain pathways that control song and speech imitation and production. Erich Ja...