Tooth and Claw: Praying Mantises

Loading player...
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)
28 Jul 2025 English United Kingdom Science

Other recent episodes

The Life Scientific: Jens Juul Holst

As recently as a few years ago, the idea of a self-administered injection that would deliver proven weight-loss results might have sounded fantastical. Today, these medications are a reality and a global phenomenon; hailed in many quarters as “miracle drugs" for their success in treating obesity and diabetes. They do…
4 May 26 min

The Life Scientific: Jim Ashworth-Beaumont

It's a rare thing to encounter a medical specialist who has experience of his field from the expert and the patient perspective - but not unheard of... Jim Ashworth-Beaumont is an orthotist and prosthetist who spent years helping people adapt to life with artificial limbs and musculoskeletal supports, before a…
27 Apr 26 min

Inside Universe 25

“I shall largely speak of mice,” the paper begins “but my thoughts are on man.” So begins a truly extraordinary scientific paper, and an equally extraordinary story. “Death Squared: The Explosive Growth and Demise of a Mouse Population.” was published in 1973 by John Calhoun, and it detailed his increasingly…
20 Apr 26 min

Dark Breath

In July 2024 a startling scientific paper was published. Headlined ‘Evidence of dark oxygen production at the abyssal seafloor’, scientists told how they had discovered oxygen being made two and a half miles down, at the bottom of the Pacific Ocean. Their claim centred on small polymetallic nodules on the…
13 Apr 26 min

Superbugs: Resistance Rising Part 3

The rapid spread of antibiotic resistant bacteria is already claiming lives - and a far greater global crisis is on the horizon. In this three part series for Discovery, reporter Roland Pease traces how we reached this point, uncovers the forces driving resistance ever faster, and meets the scientists racing…
6 Apr 29 min