Top online stories of the year, and revisiting digging donkeys and baby minds
Dec 19, 2024
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David Grimm, Online News Editor for Science Magazine, shares viral science stories from the year, including the quirks of corpse-eating pets and fan efficiency in heat. The discussion then shifts to updates from former guests: Erick Lundgren revisits his research on donkeys digging wells in deserts, Katie Hampson discusses evolving rabies research in Tanzania, and Ashley Thomas explores children's understanding of social relationships. These captivating insights highlight the intersection of science, ecology, and cognitive development.
Research highlights the challenges of forensic investigations due to pets consuming parts of bodies, necessitating new guidelines for evidence assessment.
Recent studies suggest children as young as three contributed to prehistoric cave art, reshaping our understanding of early artistic expression.
Deep dives
Impact of Pets on Forensic Investigations
Research indicates that pets, particularly in cases where owners die alone, can complicate forensic investigations as they may consume parts of the body. This behavior raises unique challenges for forensic investigators attempting to determine the cause of death, as the damage inflicted by animals can obscure evidence at crime scenes. A scientific study has provided a flowchart aimed at guiding investigators on how to assess potential pet interference at a crime scene, highlighting how different types of pets can cause varying levels of damage. This comprehensive approach helps forensic professionals better understand how to interpret the evidence in cases that involve animal consumption.
Insights from Ancient Cave Art
Recent findings in a Northern Spanish cave suggest that children as young as three years old participated in creating prehistoric cave art, previously attributed mainly to adults. Archaeologists, alongside child development experts, have studied scribbles found in the cave and propose that these markings likely stem from children engaging in creative expression, akin to modern nursery school behavior. The study challenges conventional assumptions about the creators of cave art by emphasizing that children played a significant role in this process. This revelation encourages further investigation into other archaeological sites to identify similar instances of children's contributions to ancient art.
Fan Use in Hot Weather: An Emerging Concern
Current research explores the effectiveness of fans in extreme heat, revealing that they may become counterproductive beyond certain temperature thresholds. When temperatures rise too high, fans can circulate hot air, which can exacerbate discomfort rather than providing relief, especially in humid conditions. The conflicting recommendations from organizations like the CDC and WHO highlight the need for more comprehensive studies to clarify the ideal usage of fans in heat waves. This understanding is crucial for public health, particularly in areas vulnerable to extreme heat, to prevent heat-related illnesses.
Innovations from the Ig Nobel Awards
The Ig Nobel Awards celebrate humor and the unconventional side of science by honoring peculiar but thought-provoking studies. This year, notable winners included research on how certain plants imitate plastic shapes and a study examining the direction in which people's hair swirls based on hemispherical geography. The awards not only entertain but also spark conversations about the bizarre intersections of science and everyday life. By shedding light on lesser-known but fascinating experiments, the Ig Nobels serve as a platform to encourage curiosity and creativity in scientific inquiry.
First up this week, Online News Editor David Grimm shares a sampling of stories that hit big with our audience and staff in this year, from corpse-eating pets to the limits of fanning ourselves.
Next, host Sarah Crespi tackles some unfinished business with Producer Kevin McLean. Three former guests talk about where their research has taken them since their first appearances on the podcast.
Katie Hampson, a professor of infectious disease ecology at the University of Glasgow, discusses where her Tanzanian rabies research has spread. Hampson first appeared on the podcast in April 2022.
Ashley Thomas, an assistant professor of psychology in the Laboratory for Development Studies at Harvard University, talks about why it’s important to plumb the depths of baby minds and the big questions behind her work on children’s understanding of social relationships. Thomas first appeared on the podcast in January 2022.
This week’s episode was produced with help from Podigy.