
Pheromones
In Our Time: Science
00:00
How to Deceive Animals
The female web spider, in this case, puts her web into a sticky ball at the end of a long thread. She synthesizes, as it were illegally, she counterfeits the femal sex pheromone of moths. It gets weirder at different times of night, she releases different counterfeit blends. So that way she can pretend to be the female moth and lure them in like a siren. And you have pictures? I mean, can you photograph this? Patiently, yes. There's a biologist called Ken Haines in University of Kentucky who's got some wonderful photographs of this.
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