Pregnancy's effect on 'biological' age, polite birds, and the carbon cost of home-grown veg

Nature Podcast

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Science, News, Technology

4.4 • 859 Ratings

🗓️ 3 April 2024

⏱️ 27 minutes

🔗️ Recording | iTunes | RSS

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Summary

In this episode:

00:35 Pregnancy advances your ‘biological’ age — but giving birth turns it back

Growing a baby leads to changes in the distribution of certain chemical markers on a pregnant person’s DNA, but new research suggests that after giving birth, these changes can revert to an earlier state.

Nature News: Pregnancy advances your ‘biological’ age — but giving birth turns it back

08:07 Bird gestures to say 'after you'

A Japanese tit (Parus minor) will flutter its wings to invite their mate to enter the nest first. Use of these sorts of gestures, more complex than simply pointing at an object of interest, were thought to be limited to great apes, suggesting that there are more non-vocal forms of communication to be found in the animal kingdom.

Scientific American: Wild Birds Gesture ‘After You’ to Insist Their Mate Go First

13:34 The carbon cost of home-grown veg

Research have estimated that the carbon footprint of home-grown food and community gardens is six-times greater than conventional, commercial farms. This finding surprised the authors — keen home-growers themselves — who emphasize that their findings can be used to help make urban efforts (which have worthwhile social benefits) more carbon-efficient.

BBC Future: The complex climate truth about home-grown tomatoes

20:29 A look at next week's total eclipse

On 8th April, a total eclipse of the Sun is due to trace a path across North America. We look at the experiments taking place and what scientists are hoping to learn.

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1:06.1	Hi everyone, Benjamin from the nature podcast here. At this time of year, we tend to do something a little bit different with the show, and this year is no different. We are going to do a bit of a deep dive into some of the stories that have appeared in the nature briefing over the past few weeks. And joining me to do so once again are Noah Baker. Noah, how are you doing? I'm very well. Thank you, Ben. How are you? Yeah, doing okay. Thank you very much. And the third member of the team today is Flora Graham. Flora high.
1:29.5	Hi. Great to be here. Thanks for having me. Excellent. Well, listen, let's crack on then. Noah, why don't you go first this week? What's caught your eye on the nature briefing recently? that I've been reading about in nature, and it's about a paper that was published in the general cell metabolism, and it's all about aging and pregnancy. And presumably there is a link
1:49.6	between the two. Yeah, so specifically what we're talking about here is what's called biological
	...

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