CrowdScience - How are we evolving?
Medical intervention has disrupted natural selection in humans as many more children survive into adulthood than did a few centuries ago. And as our DNA continues to evolve, in order to adapt to our environment, how might human beings of the future be different from us? Anand Jagatia explores how some humans, over just a few thousand years, have adapted genetically to live at high altitudes of the Tibetan Himalayas or in the cold climates of Inuit Greenland. Several Crowdscience listeners got in touch to ask about the ways in which humans might evolve in future but understanding how we’re adapting to modern ways of living is much harder to measure. So what adaptions do evolutionary biologists expect for the human race? How will IVF, gene-editing, mass migration and our constantly changing culture affect how we evolve?
Presenter: Anand Jagatia. Produced by Dom Byrne and Melanie Brown for BBC World Service
(Photo: People in a crowded street. Credit: Getty Images)
50 Things That Made the Modern Economy - Pornography
30 Animals That Made Us Smarter - Cod and antifreeze
Unexpected Elements - The birth of a new volcano
A new undersea volcano has appeared off the coast of East Africa. The sea floor between Madagascar and Mozambique has become increasingly seismically active in the last year. As well as the appearance of this active volcano, local islands are now experiencing frequent earthquakes.
The causes of Indonesia’s Palu Bay tsunami last year are being examined thanks to social media. Videos taken as the tsunami hit have been analysed to determine wave heights and speeds and suggest possible causes.
Scientists at a massive underground physics research facility in Italy are to stand trial over safety risks. The facility uses poisonous chemicals. There are concerns these could leak into drinking water supplies in the event of an earthquake.
As scientists keep finding ever more fascinating facts about the invisible housemates that share our homes, we investigate what might be lurking in quiet household corners or under our beds.
We head out on a microbial safari with expert tour guide Dr Jamie Lorimer from the University of Oxford to find out what kind of creatures are living in our kitchens, bathrooms and gardens - from bacteria normally found in undersea vents popping up in a kettle, to microbes quietly producing tiny nuggets of gold. For so long this hidden world has been one that we’ve routinely exterminated - but should we be exploring it too?
(Image: Multibeam sonar waves, reflecting off the sea floor near the French island of Mayotte, reveal the outline of an 800-meter-tall volcano (red) and a rising gas-rich plume. Credit: MAYOBS team (CNRS / IPGP -Université de Paris / Ifremer / BRGM)
CrowdScience - Could our household microbes help or harm us?
As scientists keep finding ever more fascinating facts about the invisible housemates that share our homes, we dust off our episode on what might be lurking in quiet household corners or under our beds. Marnie Chesterton reminds us how dust can contain all sorts of secrets about our habits and everyday lives, and Anand Jagatia bravely ventures into parts of our homes that are usually overlooked. He heads out on a microbial safari with expert tour guide Dr Jamie Lorimer from the University of Oxford to find out what kind of creatures are living in our kitchens, bathrooms and gardens - from bacteria normally found in undersea vents popping up in a kettle, to microbes quietly producing tiny nuggets of gold. For so long this hidden world has been one that we’ve routinely exterminated - but should we be exploring it too? Presenters: Marnie Chesterton and Anand Jagatia. Produced by Jen Whyntie for BBC World Service.
(Photo: A woman using a damp sponge to clean dust collected on a window sill. Credit: Getty Images)
50 Things That Made the Modern Economy - Recycling
30 Animals That Made Us Smarter - Termite and ventilation system
CrowdScience - Could dark matter harbour dark life?
Where the conditions are right, life can arise. But what might the ‘right’ conditions be? Could the dark sector of our Universe be inhabited? That’s what Gautam from Delhi, India has been wondering. He points out that dark matter and dark energy make up around 95% of the Universe and the remaining segment is normal matter - the stuff we’re all made up of. Given that there’s so much of this dark material, could dark life have evolved? Marnie Chesterton investigates with Dr Matt Middleton, Dr Burçin Mutlu-Pakdil and Dr Renato Costa. Together, they unpick what dark matter and dark energy are and test out some listener theories as to what these mysterious mediums might be. For instance, Yoseph from Ogden, USA questions whether black holes could account for the missing matter and it turns out, he might just be on to something… Presented by Marnie Chesterton. Produced by Graihagh Jackson for BBC World Service.
(Photo: Arrangement of Nebula, Stars and a colourful galaxy. Credit: Getty Images)
