How humans survived an ancient volcanic winter and how disgust shapes ecosystems

How humans survived an ancient volcanic winter and how disgust shapes ecosystems

When Indonesia’s Mount Toba blew its top some 74,000 years ago, an apocalyptic scenario ensued: Tons of ash and debris entered the atmosphere, coating the planet in ash for 2 weeks straight and sending global temperatures plummeting. Despite the worldwide destruction, humans survived. Sarah Crespi talks with Online News Editor Catherine Matacic about how life after Toba was even possible—were humans decimated, or did they rally in the face of a suddenly extra hostile planet? Next, Julia Buck of the University of California, Santa Barbara, joins Sarah to discuss her Science commentary piece on landscapes of disgust. You may have heard of a landscape of fear—how a predator can influence an ecosystem not just by eating its prey, but also by introducing fear into the system, changing the behavior of many organisms. Buck and colleagues write about how disgust can operate in a similar way: Animals protect themselves from parasites and infection by avoiding disgusting things such as dead animals of the same species or those with disease. This week’s episode was edited by Podigy. Listen to previous podcasts. [Image: Emma Forsber/Flickr; Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

Tämä jakso on lisätty Podme-palveluun avoimen RSS-syötteen kautta eikä se ole Podmen omaa tuotantoa. Siksi jakso saattaa sisältää mainontaa.

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Tales from an Italian crypt, and the science behind ‘dad bods’

Tales from an Italian crypt, and the science behind ‘dad bods’

First up on the podcast, Contributing Correspondent Andrew Curry talks with host Sarah Crespi about his visit to 17th century crypts under an old hospital in Italy. Researchers are examining tooth pla...

1 Touko 202532min

A caterpillar that haunts spiderwebs, solving the last riddles of a famed friar, and a new book series

A caterpillar that haunts spiderwebs, solving the last riddles of a famed friar, and a new book series

First up on the podcast, bringing Gregor Mendel’s peas into the 21st century. Back in the 19th century Mendel, a friar and naturalist, tracked traits in peas such as flower color and shape over many g...

24 Huhti 202545min

Linking cat domestication to ancient cult sacrifices, and watching aurorae wander

Linking cat domestication to ancient cult sacrifices, and watching aurorae wander

First up on the podcast, Online News Editor David Grimm joins host Sarah Crespi to talk about how an Egyptian cult that killed cats may have also tamed them.   Next on the show, we hear about when the...

17 Huhti 202526min

The metabolic consequences of skipping sleep, and cuts and layoffs slam NIH

The metabolic consequences of skipping sleep, and cuts and layoffs slam NIH

First up on the podcast, ScienceInsider Editor Jocelyn Kaiser joins host Sarah Crespi to discuss big changes in science funding and government jobs this month, including an order to cut billions in co...

10 Huhti 202528min

Talking about engineering the climate, and treating severe nausea and vomiting during pregnancy

Talking about engineering the climate, and treating severe nausea and vomiting during pregnancy

Geoengineering experiments face an uphill battle, and a way to combat the pregnancy complication hyperemesis gravidarum First up on the podcast, climate engineers face tough conversations with the pu...

3 Huhti 202531min

Studying urban wildfires, and the challenges of creating tiny AI robots

Studying urban wildfires, and the challenges of creating tiny AI robots

First up this week, urban wildfires raged in Los Angeles in January. Contributing Correspondent Warren Cornwall discusses how researchers have come together to study how pollution from buildings at su...

27 Maalis 202532min

Why seals don’t drown, and tracking bird poop as it enters the sea

Why seals don’t drown, and tracking bird poop as it enters the sea

First up this week, Newsletter Editor Christie Wilcox joins host Sarah Crespi to discuss stories from the sea, including why scientists mounted cameras on seabirds, backward and upside-down; newly dis...

20 Maalis 202538min

Why sign language could be crucial for kids with cochlear implants, studying the illusion of pain, and recent political developments at NIH

Why sign language could be crucial for kids with cochlear implants, studying the illusion of pain, and recent political developments at NIH

First up this week, science policy editor Jocelyn Kaiser joins host Sarah Crespi to discuss the latest news about the National Institutes of Health—from reconfiguring review panels to canceled grants ...

13 Maalis 202542min

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