One of the more surprising consequences of the pandemic has been the trend for people wanting to move out of cities and back to the countryside. Not everyone has that privilege of course, but undoubtedly for some living in urban areas during lockdown, the lack of access to green spaces took its toll on their mental health and physical well-being. Now, with renewed hope of a global vaccine roll-out, ensuring more people have better access to nature is more important than ever, especially in cities of glass, steel and concrete.
Italian CrowdScience listener Enrica loves nothing better than walking along the verdant riverbank near her home after a hard week at work. But is this activity doing more than making her feel good? Is it having an actual effect on her health? Presenter Anand Jagatia meets Enrica and visits a radical scheme in the city of Milan, where officials have been working hard to increase urban green features and have committed to planting 3 million trees and building twenty new parks by 2030.
One such idea is the innovative Bosco Verticale - or vertical forest, planted up the side of two high rises apartment blocks. Amongst other benefits It’s hoped it could provide cooling microclimates to reduce the dangers of summer heat, and improve resident’s mental health.
Produced by Jennifer Whyntie. First broadcast October 2019.
(Photo: Tree lined "tunnel" in the English countryside of West Sussex. Credit: Getty Images)
Hair scientist Crystal Porter explains the science behind curly hair (hint: It involves mushy cells in teeny-tiny tunnels). Plus, a bit of listener mail from you! Which you can always send by emailing shortwave@npr.org.
Mutant strains of SARS-Cov2 have been identified not only in the UK, where it was first identified, but also in at least 30 other countries. And to complicate matters, another alarming variant, with some similar mutations, has arisen in South Africa. Roland Pease talks to Ravi Gupta, a virologist at Cambridge University and Tulio de Oliveira of the University of KwaZulu Natal about these new strains.
There’s only so much that can be learned about the virus by looking at the patients it infects. Thanks to techniques developed to study HIV, Ebola, flu and other viruses in the past, researchers have methods for growing key parts of viral structures in the lab and watching closely how they behave in cell cultures. Jeremy Luban of the University of Massachusetts and Alli Greaney at the Fred Hutchinson Cancer Research Center talk to Roland about how they are studying the biology of the mutations to discover how the new strains might respond to vaccines.
Scientists think the world's oldest ice is hiding somewhere in Antarctica. NPR science correspondent Nell Greenfieldboyce tells us how researchers plan to find it — and why.
By day, Jess Wade is an experimental physicist at Imperial College London. But at night, she's a contributor to Wikipedia — where she writes entries about women and POC scientists. She chats with Emily Kwong about how Wikipedia can influence the direction of scientific research and why it's important to have entries about scientists from under-represented communities.
2020 was a year like no other, especially for science. The pandemic has caused massive shifts in scientific research – how it's being done, what's being focused on, and who's doing it. Ed Yong of The Atlantic explains some of the ways, both good and bad, that COVID-19 has changed science.
Consider two different, but similar situations. In the first, children are asked to pull ropes together. Candy cascades down, but in unequal distribution – three for one child and one for the other. In the second situation, the children come across the sweets but without joint labor, and again find an uneven distribution.
What usually happens next differs between the two situations. When the kids work together, they tend to willingly share the proceeds so everyone ends up with an equal share. But when the candy was discovered through individual serendipity, the children tend to accept the uneven outcome and don’t equalize shares.
The first situation involves what Mike Tomasello, the James F. Bonk Distinguished Professor of Psychology at Duke University, would call joint commitment; “When children produce sweets collaboratively they feel they should share them equally.” There’s no explicit promise of an equal share, but there is an implicit one that’s just as recognizable and genuine.
As Tomasello details to interviewer David Edmonds in this Social Science Bites podcast, “I can say I don’t like it when you keep all the sweets – that’s my personal opinion – but when I say ‘you shouldn’t do that, you mustn’t do that, you must do this, you have to do that,’ this is not my personal opinion. This is something objective.”
While this might be a normative bond that helps glue humans together, it’s not a bond he finds in our closest relatives. Tomasello points out that among chimps – with which the longtime co-director of the Max Planck Institute for Evolutionary Anthropology has a deep background researching - the dominant partner takes the spoils in almost all cases. The “we-ness” that can mark human behavior is replaced by the “me-ness” of other primates.
That difference between primates and people is the basis of much of Tomasello’s career (see the work of the Tomasello Lab at Duke: “studying the development and evolution of social cognition, communication, and cooperation“) and of his 2018 book, Becoming Human: A Theory of Ontogeny. Much of his effort has focused on great apes, our closest primate relatives, following a line of research that started with Jane Goodall learning that apes make and use tools. Great apes share many qualities with human beings – they understand causal relations, can work with the concept of quantities, can predict what others might do based on what they see and what their goal is, are good social learners, can communicate with gestures (and can learn new ones), and can work with one another in some cases.
But Tomasello notes a key area in which apes and people differ. “Humans put their heads together, as a general phrase, to accomplish things that neither one can do on his or her own. So if you look at all the things you think are most amazing about humans – we’re building skyscrapers, we have social institutions like governments, we have linguistic symbols, we have math symbols, we have all these things – not one of them is the product of a single mind. These are things that were invented collaboratively at the moment or else over time as individuals build on one another’s accomplishments.”
Great apes and other creatures – ants and bees do offer a limited counter-example -- don’t do that. Understanding this evolved capacity – Tomasello doesn’t like using terms like “hard-wired” or “innate” – isn’t just a matter for academic interest. While he shied away from talking about the normative implications of his research and theories, Tomasello noted the benefits of cooperation and collaboration (and also some of its less-welcome artefacts such as creating out-groups to discriminate against), whether in sports, or work, or society. While he wouldn’t develop public policies, “If you want a more cooperative society, I can tell you some things that would help.”
For nearly forty years, the Guam Rail bird (locally known as the Ko'Ko') has been extinct in the wild — decimated by the invasive brown tree snake. But the Ko'Ko' has been successfully re-introduced. It is the second bird in history to recover from extinction in the wild. Wildlife biologist Suzanne Medina tells us the story of how the Guam Department of Agriculture brought the Ko'Ko' back, with a little matchmaking and a lot of patience. (Encore episode)
This has been an incredible year for scientific advance and collaboration, epitomised by the roll out of vaccines that didn’t exist a year ago, against a virus that no one had ever heard of .
And yet at the same time its been a year of incredible frustration. We are stil largely using the same methods to counter the virus that were used in past pandemics, going back a hundred years.
Here we look back at key the findings on who is most susceptible and why, and ask how to improve the strategies for reducing transmission.
As regular listeners may recall, CrowdScience has delved into the strange world of fungi before, as we dug down into the forest floor to reveal how plants and trees are connected to the vast mycelial network known as the “wood wide web”. But what makes this network possible and how might it have evolved? Fungi are incredible clever, or at least , it appears that they’re capable of displaying complex behaviour that gives them the appearance of intelligence. In this episode, we speak to fungal ecologist and author of a new book, Merlin Sheldrake, about fungal “brains”, the evolution of magic mushrooms and zombie insects – the astonishing way certain fungi can take over the bodies of ants and wasps in order to sow their spores above ground.
In our first programme of the year, we gathered a group of scientific experts directly involved in analysing the structure and impact of the SARS- Cov-2 coronavirus. There were concerns over the emergence of two new variants, Alfa and Beta, especially whether these variants might spread more quickly or outmanoeuvre the suite of new vaccines that were about to be rolled out.
And now with Omicron, the same questions are being asked about this variant’s ability to spread and overcome our defences.
We’ve invited the same scientists back to give us their assessment of our journey with Covid 19 over the past year and discuss their findings on Omicron.
Featuring:
Ravi Gupta Professor of Clinical Microbiology at the University of Cambridge
Tulio De Oliveria Professor on Bioinformatics, Stellenbosch University, South Africa
Dr. Allie Greaney From the Medical Scientist Training Program at the University of Washington School of Medicine
And Professor Jeremy Luban from the Broad Institute of MIT and Harvard
Should you wash your eggs? Well, believe it or not, there is quite an international debate about this question from CrowdScience listener Susan. In Canada, where Susan grew up, commercially sold eggs are washed before they reach stores, whereas in the UK where she is now living they are not. So what is best to avoid contamination?
It’s one of a number of egg-themed questions that CrowdScience tries to crack in this episode. One of our presenters, Marnie Chesterton, heads over to Susan’s home in London to cook some eggs and explore other egg cooking questions from our listeners, such as what is the science behind frying an egg without it sticking to the pan and why are some boiled eggs harder to shell than others?
Meanwhile, this episode’s other presenter, Anand Jagatia, explores questions about eggs after they have hatched. He investigates a case of curious chicken behaviour sent in by listener Laurie, as well as working out how a cuckoo knows it’s a cuckoo when it’s been raised in another bird’s nest.
Featuring: Dr. Vincent Guyonnet, Dr. Valérie Lechevalier, Dr. Siobhan Abeyesinghe and Dr. Ros Gloag
