Natures wonders: very fast biting spider (Introduction)

by David Turell @, Friday, April 08, 2016, 19:53 (1410 days ago) @ David Turell

Most be filmed at 40,000 frames per second to follow it:

"The spiders are only found in New Zealand and southern parts of South America, with the quickest of the 14 species of trap-jaw spider closing their jaw more than 100 times faster than the slowest.

"The high-speed predatory attacks of these spiders were previously unknown. Many of the species I have been working with are also unknown to the scientific community."

"Wood examined how these trap-jaw spiders used their unusual head anatomy, like the closely related pelican spider, and how they would stalk prey with their chelicerae (jaws) wide open — snapping them shut when they got close enough. It's the type of predatory behaviour that's been witnessed on ants, but not arachnids.

"Not only are some of these trap-jaw spiders fast, four of the spiders boast a power output exceeding the known capacity of their muscles.

"It's a finding which shows that a spider's movements aren't necessarily powered by their tiny muscles, according to the statement, but have perhaps developed structural mechanisms in their bodies which allow the storing of energy

"This would allow these trap-jaw spiders to release stored energy in a way that power would be near instantaneously amplified, like some kind of super power. It's a discovery that will be further investigated by researchers, potentially having implications for future technologies outside of natural history science."

Comment: Was the bite this fast when it was first discovered by the spider, or did it speed up bit by bit through gradual changes in anatomy? We don't know.

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