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CNN 国际新闻
📌 标题：Watch the first-ever video of a newfound spider’s spring-loaded death trap
📅 发布时间：Updated Jun 23, 2026, 9:50 AM ET
📝 英文原文：
When most silk-spinning spiders hunt, they build a web and wait for prey to blunder into it. But a newly discovered species from Australia instead uses its silk to craft a spring-loaded, cone-shaped death trap, which catapults its prey into the spider’s main web. A foraging treeantbites the base of the trap, then silk tethers release and the structure hurls the ant upward. This feat of arachnid engineering has never previously been observed.Scientists recently discovered that this trap was the work of a spider from the rainforest of North Queensland. The spider — nicknamed “ballista spider,” after a projectile weapon that originated in ancient Greece — has gangly, orange limbs and a greenish-yellow body measuring about 0.2 inches (5 millimeters) long. It belongs to the genus Propostira but has yet to receive a species name, researchers reported Monday in the journalCurrent Biology.Scientists have dubbed the newfound species "ballista spider" after the ancient spring-loaded weapon.Pranav Joshi“The snare is perhaps most effective because it releases energy so rapidly that, relative to its size, it produces thousands of times more power than muscle can generate,” said lead study author Ajay Narendra, a sensory biologist and professor in the School of Natural Sciences at Macquarie University in Sydney.“Like a loaded spring, it stores energy slowly and releases it almost instantaneously,” Narendra told CNN in an email.Only one species of ant is drawn to this trap and sets it off: the green tree ant, or Oecophylla smaragdina, an arboreal species that is abundant and aggressive. It attacks rivals and predators with bites and blasts of formic acid, and has adhesive pads on its feet to help it carry heavy loads up trees.The ballista spider is the only known spider to hunt just one species of prey. Its highly specialized strategy likely evolved to take advantage of the ant’s natural aggression and then overcome its defenses; the slingshot mechanism flings the ant from the for
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🇨🇳 中文翻译：
当大多数丝纺蜘蛛捕猎时，它们会结网并等待猎物误入其中。但来自澳大利亚的一种新发现的物种却用它的丝制作了一个弹簧加载的锥形死亡陷阱，将猎物弹射到蜘蛛的主网中。正在觅食的树蚁咬住陷阱的底部，然后丝绳松开，结构将蚂蚁向上抛起。蜘蛛工程的这一壮举以前从未被观察到。科学家最近发现这个陷阱是
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本文由自动抓取系统生成，英文原文已自动翻译为中文。 |
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