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Discussion in 'True Spiders & Other Arachnids' started by Ratmosphere, Oct 12, 2017.
Anyone know what the fastest true spider in the world is?
Over what distance? Actually, it's academic. Salticids win hands down. I read they share a similar encephalitic sack similar to bats in order to cushion the brain from G force damage. Their speed upon take off, jumping, being a one shot deal without additional locomotion involved could get close to the speed of sound.
Additionally, no other spider employs the full force of all leg musculature simultaneously in one coordinated effort/direction. Applying so much energy yet lacking the aerodynamics to keep the spider firmly on a surface, it would be impossible for a salticid, or any other spider for that matter, to not go airborne. Compare to 'dragster' type vehicles that require wind wings to keep it from taking off like a plane.
The spider essentially becomes a projectile like a bullet from a gun.
There's a Moroccan spider that can roll to escape predators--I suspect it's the fastest over any significant distance.
Oh yeah! I always forget about those silly spiders. They look absurd, though scientifically speaking it's fascinating.
I'm a big fan, myself. Plus I think most people look a little absurd running fast.
Ctenidae and Sparassidae have insane speed, but it's only over a limited distance. Same with Eratigena. Oxyopidae can also move with pretty extreme speed, but over a very very limited distance. Once you throw physics in there though I agree with Snark on salticids taking the cake.
Agelenidae are the fastest of all when it comes to actual running speed, though it may be a tie compared to aglaoctenis, a neotropical wolf spider genus that also builds a funnel web. They basically have a mental map of their web, so when something is at the far outer edge, they can explode with tremendous speed over a considerable distance. it's pretty damn impressive.
An interesting aspect. The equivalent of Usain Bolt training on his particular, unique choice of track his entire life. The spider entirely reliant upon it's speed and intimate knowledge of the race track, enabling it to hunt prey that could readily escape any similar situation and spider. Just visualize any spider making a dash at a housefly 6 or more inches away.
My Heteropoda lunula is the fastest spider I've ever owned. She's like shit off a shovel when the mood takes her.