Science Friday

New research challenges the traditional belief that only men were hunters in ancient times. Physiological and archaeological evidence suggests that females also participated in hunting during the Paleolithic era. Estrogen played a significant role in their ability to engage in long-distance hunting. Neanderthal remains show a balanced distribution of bone injuries related to hunting. The myth of 'Man the Hunter' persists due to stereotypes and sexism. The rise of agriculture led to the separation of men's and women's work spheres, negatively impacting women.

Dr. Fei-Fei Li discusses human-centered artificial intelligence and the potential societal impact of AI. They address concerns about AI surpassing human intelligence and emphasize the urgent social risks that need to be addressed. The podcast also explores the development of neural networks, the creation of ImageNet, and the issue of algorithm bias in AI technology. It highlights the transformative force of AI in society and the importance of dialogue and exchange of ideas with the public.

COP28 host planned to promote oil and gas, raising skepticism. A single bitcoin transaction uses enough water to fill a swimming pool. Nutrients in soil drive biodiversity. Amino acids could be formed alongside stars. Researchers detected cicada emergence with fiber-optics.

Ralph Nader, prolific consumer advocate, reflects on his groundbreaking investigation 'Unsafe at Any Speed' and its impact on auto safety. The discussion includes advancements in car safety over the past 55 years and the need for safety checks in new technologies like self-driving cars.

The podcast explores the use of AI models to predict the qualities of smells in chemical compounds. It discusses the development of an AI model to train a computer to identify different smells. The podcast also explores the nature of smell perception and the role of genetics in smell perception. It also delves into the use of AI to predict new chemicals in the fragrance industry and the goal of digitizing primary odors.

Renowned primatologist Jane Goodall discusses her work with chimpanzees, including their tool use and unique voices. She explores the dark side of chimpanzees and advocates for animal rights. Goodall believes in the existence of yeti or bigfoot and discusses the use of DNA technology in studying chimpanzees. She emphasizes the cultural differences among chimpanzees and the threats they face, such as habitat destruction. Goodall highlights the importance of preserving the forest and discusses the power of nature. She shares her impactful work with chimpanzees and her efforts to promote environmental conservation and youth education.

Discover the mysteries of animal movement and its applications in robotics. Explore the physics of wet-dog shakes and how bugs walk on water. Learn how flies climb walls and inspire engineers. Marvel at the agility of fruit flies. Reflect on the challenges of wasteful science and the value of studying animal movement.

The podcast discusses the Ig Nobel Prizes, including research on licking rocks, necrobotics, boredom in the classroom, nose hairs, and the invention of a smart toilet that can analyze health data.

Reporter adopts wild horse to explore the history and ecological impact of mustangs in the American West. Artist examines the genetic modification of pigs for organ transplantation. Discusses the controversy of wild horse roundups and the management of mustangs by Native American tribes. Explores the symbolism and power of horses in American culture. Delves into the history of genetically modifying pigs and the ethical implications of using them for organs.

New research reveals moon is 40 million years older than previously thought, providing insights into the early solar system. The podcast also delves into the science behind declining sweater quality, discussing the differences between natural and synthetic fibers, the impact of friction and static electricity, and the shift in the fashion industry.