Beasts of Science is like a collection of short stories. Beautiful stories told by the living in all their freshness. But in all its complexity. Bracket to admire the treasures of the world. In this new episode, let’s discover a little beast, not always the most popular one: the spider.
To overcome your fear, you must know how to tame it. This is advice given to me by a psychologist I consulted a few years ago. A better acquaintance with spiders should have helped me overcome my archophobia. I’for those fortunate enough to ignore it, this is . An irrational fear that became really overwhelming for me… when I moved in alone. And that I decided to take responsibility the day I poured a whole can of insecticide on one of these beasts that had snuck in on me. !
To tell you everything, I have come a long way. Because in the arachnophobia genre, I was at the stage of a real panic attack. I remember this magazine, which I was never able to open. Simply because the cover featured a spider. Therefore, at first it was necessary to agree to simply write the word. In a pen. On thefrom . Agree to look at pictures of spiders. Then video. Cool videos, that’s for sure. Not the horrors that today are found on .
And then I could learn to discoverspider. His network. His manners. Its features . Hey, did you know that spiders don’t have ears? At least not in the sense that… we’re serious! However, this does not seem to prevent some of them from not only feeling their prey when they fall into the web, but also literally respond to sounds. Thanks to the nerve receptors located on their paws and working like ears. capture and transmit impulses .
The orbweb spider, Larinioides sclopetarius, uses its web as a giant extra ear.
“By transmitting its acoustic sensors to the web, it allows the araneid spider to greatly increase its sound-sensing surface area, up to 10,000 times that of the spider itself.” pic.twitter.com/JIyKqDHv49
— Stone Age Herbalist (@Paracelsus1092) November 2, 2021
Hear his prey arrive, but also his predators
Researchers even now believe that spiders – at least some of them – have keen hearing. They could hear us talking across the room. Even if what they hear is more like a poor quality phone call. And we have to admit, there’s nothing to suggest that the spiders are really interested in what we have to say…
Where can we start asking ourselves the question ofFrom these small animals we notice that they are capable of weaving a web that serves as an amplifier for sound. A bit like antennas that we point to the sky in the hope of capturing .
Spiders of the species that English speakers call “Spider “ or ” spider cross » — understand, “Spider Bridge” Where “gray cross-spider” — and who live throughout Europe and most of North America, seem to have learned to weave a web that serves . Canvases that may be ” nature is the most efficient.
Those10,000 times the size of your body. And their vibrations can be transmitted nerves, which are nothing more than small hairs, on their legs . So that they can hear birds or crickets a few meters away. Even not less than ten meters, the researchers imagine. It remains to be confirmed that spiders are indeed able to distinguish between the sounds made by one and the other. Sounds made by predator and prey. But it would seem that these little creatures are definitely… not so stupid after all!