Spring-loaded plungers use a spring and a plunger (or ball tip) to exert a precise and repeatable force. They are a better option than having engineers cobble together an assembly that uses a simple, ...

Scientists discovered that the Australian “ballista spider” uses a silk cone trap to catapult prey into its web, a feat of spider engineering never before observed.

An international team of researchers has discovered a remarkable new spider species in the rainforest of North Queensland that spins an ingenious and powerful spring-actuated snare to catch a single ...

New spider that hunts dangerous ants using a spring-loaded trap discovered by scientists in Australia - A ballista spider’s trap can launch ants at an acceleration comparable to a severe car crash ...