Tooth and Claw: Praying Mantises

螳臂当车:祈祷螳螂

Discovery

2025-07-29

26 分钟
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Investigating an insect known for eating its prey alive – including, at times, its own species - the praying mantis! With bulging eyes and a triangular head, this predator uses it specially adapted front legs to trap its prey. Able to predate animals of a size much larger than themselves, including birds, lizards and even fish, presenter Adam Hart hears about their cultural significance to human populations all around the world, as well as addressing their reputation for sexual cannibalism. We also hear about their biomaterial qualities and potential importance in agriculture, and also look into a parasitic relationship the praying mantis has with a worm in South America which has given them the name ‘the mother of snakes’. Contributors: Dr. Julio Rivera, entomologist and researcher at the Université de Montréal in Canada and research associate at the Montréal Insectarium. Dr. Bianca Greyvenstein, postdoctoral fellow at North-West University in Potchefstroom and an expert in the praying mantises of South Africa. Presenter: Professor Adam Hart Producer: Jonathan Blackwell (Photo: Praying Mantis, Credit: Paul Starosta via Getty Images)
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  • This BBC podcast is supported by ads outside the UK.

  • You're listening to Discovery from the BBC World Service.

  • I'm Adam Hart and this is Tooth and Claw,

  • the series where I explore our complex and challenging relationships with Earth's greatest predators through the people who have spent their lives studying,

  • protecting and at times narrowly escaping them.

  • Today's predator is immediately recognisable through its bulging eyes and triangular head.

  • but it's most famous for its raptorial front legs,

  • which it uses to grasp, trap and even impale its prey.

  • These insects have been known to predate animals of a size much larger than themselves,

  • including birds, lizards and frogs, which these masters of camouflage ambush.

  • Known to eat their prey alive, and at times cannibalistic,

  • they have been considered beings of supernatural powers by ancient civilizations.

  • We are, of course, talking about the praying mantis.

  • Joining me are Dr. Julio Rivera,

  • an entomologist and researcher at the Université de Montreal in Canada,

  • and research associate at the Montreal Intersectarium,

  • and Dr. Bianca Hrevenstein, a postdoctoral fellow at Northwest University in Potsdam,

  • who is an expert in the praying mantises of South Africa.

  • Bianca, starting with you, where did praying mantises get their name from?

  • Well, the word mantis...