Podcast Episode 9, Jesse and Sophie chat about how it is that we're able to remember (tens of) thousands of faces with relative ease, our new algorithm that can model blood vessel growth to pre-empt tumours, the ancient origins of Homo sapiens (100 000 years older than expected), and, they speak with Robert Whyte, co-author of A Field Guide to Spiders of Australia.
Join Jesse and Sophie as they cast their net overboard to snag last fortnight’s science news before heaving it aboard with their gelatinous biceps for us all to sort through. Here’s the catch: they talk about how it is that we’re able to remember (tens of) thousands of faces with relative ease, our new algorithm that can model blood vessel growth to pre-empt tumours, the ancient origins of Homo sapiens (100 000 years older than expected), and, they speak with Robert Whyte, co-author of A Field Guide to Spiders of Australia — the latest and most comprehensive guide to those wonderful eight-legged friends.
- Facial recognition in monkeys (and maybe us) — “Now, using a combination of brain imaging and single-neuron recording in macaques, biologist Doris Tsao and her colleagues at Caltech have finally cracked the neural code for face recognition. The researchers found the firing rate of each face cell corresponds to separate facial features along an axis. Like a set of dials, the cells are fine-tuned to bits of information, which they can then channel together in different combinations to create an image of every possible face,” from Scientific American. Full paper, here.
- Oldest human fossils, yet — “The discoveries, reported in Nature, suggest that our species came into the world face-first, evolving modern facial traits while the back of the skull remained elongated like those of archaic humans. The findings also suggest that the earliest chapters of our species’s story may have played out across the African continent. ‘These hominins are on the fringes of the world at that time,’” says archaeologist Michael Petraglia of the Max Planck Institute for the Science of Human History in Jena, Germany,” from Science. Full paper, here.
We speak with Robert Whyte, honorary researcher at Queensland Museum to talk about his new book from CSIRO Publishing: A Field Guide to Spiders of Australia. Robert tells us about his favourite group of spiders — jumping spiders and some of the neat things they can do, how Australia became the nursery for such rich spider diversity, and also how to cure your fear of spiders (hint, buy the book).
Where there’s smoke there’s fire: early cancer detection through fine-print mapping of blood vessel growth
“To grow, cancerous cells feed on a constant supply of nutrients from blood vessels. Like piping infrastructure preceding a new development, the growth of new blood vessels can be mapped to locate early-stage cancers quickly — and with our new algorithm, those maps are finer and more accurate than ever before.,” from our blog. Learn more about the study here.
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