Should we help maggots and caterpillars?

我们是否应助蛆虫与毛毛虫一臂之力?

CrowdScience

2025-10-25

27 分钟
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We all know insects are important, but one CrowdScience listener worries that they don’t seem to have equal billing when it comes to human love and attention. In Scotland’s capital Edinburgh, listener Ruth loves to sit and listen to the birds, the bees and the hoverflies as they go about their daily chores. And it’s got her wondering why bees and butterflies seem to get all the conservation efforts. What do we need to do to protect butterflies as less beautiful caterpillars, and ladybirds as less glamorous larvae? Are people even aware that insects exist in multiple stages of a lifecycle, and that around the world, insect populations are facing perilous levels of decline. Presenter Alex Lathbridge is on a mission to identify the other unsung insect heroes. Along the way we meet Dr Caitlin Johnstone and Dr Nick Balfour at the Royal Botanic Gardens Edinburgh, who help listener Ruth find out about the lifestyles and lifecycles of hoverflies. We meet the midge that pollinates cocoa crops in Ghana, as well as Dr Tonya Lander from Oxford University and Dr Acheampong Atta-Boateng from the University of Arizona who have been studying them. And Marc Vaez-Olivera from the company Polyfly introduces us to the billions of hoverflies helping to double avocado yields in Spain. We also learn what we can all do to help keep insects in our gardens… even if that may involve sacrificing a cabbage or two. Presenter: Alex Lathbridge Producer: Marnie Chesterton Editor: Ben Motley (Photo: Caterpillar eating flowering plant with pink background - stock photo Credit: Raquel Lomas via Getty Images)
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  • This BBC podcast is supported by ads outside the UK.

  • What it looks like is some sort of mini alligator ant hybrid.

  • If you imagine some sort of transforming robot that you'd see in a movie it would be like that but a few millimeters in length.

  • Definitely nothing like a ladybird even though that's what's written on the jar that they come in.

  • You know we have to count every single one we find because if we leave even one here...

  • Actually, that's a really good point.

  • They are crawling off in different directions.

  • Yeah, we should probably get them.

  • There's one.

  • Oh, we lost one.

  • It's making a break for freedom and we cannot have that.

  • I'm Alex Lathbridge.

  • Welcome to the chaos of crowd science from the BBC World Service

  • as we inspect producer Marnie's latest acquisition.

  • OK, how many are there?

  • 250.

  • I couldn't buy fewer than 200.

  • Oh, there's another one on my pad!

  • Right, they are...

  • Okay.