

The cross-discipline effort to work our how ancient humans learned to count.
In this episode:
00:45 Number origins
Around the world, archaeologists, linguists and a host of other researchers are trying to answer some big questions – when, and how, did humans learn to count? We speak to some of the scientists at the forefront of this effort.
News Feature: How did Neanderthals and other ancient humans learn to count?
07:47 Research Highlights
How sea anemones influence clownfish stripes, and how skin-to-skin contact can improve survival rates for high-risk newborns.
Research Highlight: How the clownfish gets its stripes
Research Highlight: Nestling skin-to-skin right after birth saves fragile babies’ lives
09:48 Briefing Chat
We discuss some highlights from the Nature Briefing. This time, an upper limit for human ageing, and could tardigrades survive a collision with the moon?
Scientific American: Humans Could Live up to 150 Years, New Research Suggests
Science: Hardy water bears survive bullet impacts—up to a point
Trillions of cicadas are starting to emerge in 15 US states after 17 years underground. Gene Kritsky has been studying them for decades and has created a citizen science app, Cicada Safari, to help track the brood.
More than 3000 cicada species have been described worldwide. Most have a yearly life cycle, but seven species in the US belonging to the Magicicada genus remain underground as nymphs for 13 or 17 years before emerging, a process called periodical brooding. The only other two species of cicada to do this are found in Fiji and India. Read more at https://www.newscientist.com/article/…
Indoor dining, workout classes, concerts. These once commonplace events are coming back into daily life. But because of Covid-19, everyone now has a different level of comfort. What happens in the brain as we decide what’s risky or not? Photo illustration: Laura Kammermann
Why are cicadas so freakin’ loud? Entomologist Samuel Ramsey has the answers. Dr. Sammy explains why it’s so important for cicadas to gather in large groups and make lots of noise.
A fleet of unmanned surface vehicles equipped with AI and a suite of scientific sensors are currently mapping the ocean floor, counting fish populations and monitoring ocean and weather conditions all over the planet in the fight against climate change. CNET’s Stephen Beacham spoke with Saildrone Inc. Vice President of Ocean Mapping Brian Connon to learn more about Saildrone’s mission. Read the CNET Article: Autonomous Saildrones are the newest weapon in fighting climate change https://cnet.co/2RwaJaq
Seth Doane travels to Iceland where a new volcano is spewing lava from an unusually deep place in the Earth. See the story on 60 Minutes Plus, streaming now on Paramount+.


As Peter Robin Hiesinger argues, “the information problem” underlies both fields, motivating the questions driving forward the frontiers of research. How does genetic information unfold during the years-long process of human brain development―and is there a quicker path to creating human-level artificial intelligence? Is the biological brain just messy hardware, which scientists can improve upon by running learning algorithms on computers? Can AI bypass the evolutionary programming of “grown” networks? Through a series of fictional discussions between researchers across disciplines, complemented by in-depth seminars, Hiesinger explores these tightly linked questions, highlighting the challenges facing scientists, their different disciplinary perspectives and approaches, as well as the common ground shared by those interested in the development of biological brains and AI systems. In the end, Hiesinger contends that the information content of biological and artificial neural networks must unfold in an algorithmic process requiring time and energy. There is no genome and no blueprint that depicts the final product. The self-assembling brain knows no shortcuts.