Scientists Reveal World’s Fastest Spider, Which Moves at Over 8 MPH

**Australian Jungle Huntsman Spider Crowned Fastest Spider in the World**

In a groundbreaking study that promises to redefine what we know about arachnid speed, researchers have identified the Australian jungle huntsman spider (Heteropoda jugulans) as the fastest spider globally, reaching remarkable speeds of up to 3.59 metres per second (approximately 8 mph). This finding challenges the longstanding status of the Moroccan flic-flac spider (Cebrennus rechenbergi), which was previously recognized by the Guinness World Records for its rapid movements.

The research, which is yet to undergo peer review, was conducted by a team from the University of Greifswald in Germany and Imperial College London. A total of 236 spiders from 162 different species were tested as part of this study, establishing what has been described as the most comprehensive database of spider running speeds to date. Species were carefully selected from locations across the UK, Australia, North America, and southern Europe, with some specimens sourced from pet shops.

To measure the spiders’ running speeds, each specimen was weighed and then coaxed into sprinting across sheets of gridded paper while filming equipment captured the action for biomechanical analysis. Some spiders required gentle persuasion with a paintbrush, while others necessitated bursts of compressed air to encourage movement. According to lead researcher Shreyas Kuchibhotla, if spiders possessed an understanding of English, the research would have taken significantly less time.

The study’s results have further revealed that larger spiders tend to run faster, although body size alone does not determine speed. Interestingly, researchers discovered a correlation between longer legs and increased running speed, suggesting that arachnid anatomy plays a significant role in their velocity. This conclusion adds a layer of complexity to our understanding of spider locomotion.

Another notable discovery from the research was the unexpected speed of the tiny orange goblin spider (Oonops pulcher), which boasts a minuscule weight of just 0.1 milligrams. This small arachnid was observed moving at approximately 20 cm per second—an astonishing feat considering its size. Kuchibhotla expressed surprise at the speed and agility of this spider, likening its movements to teleportation across the testing arena.

The implications of this study extend beyond mere speed measurements. The researchers posited that hunting behaviour and evolutionary history also influence the speeds at which spiders can move. This suggests that factors such as environmental adaptation and predatory tactics might play an equally critical role in shaping spider locomotion as physical characteristics.

Prior to this research, the flic-flac spider, known for its unique rolling escape technique on sandy slopes, had been credited with impressive speed, achieving 1.1 metres per second. However, experts have contested the classification of this movement as ‘running’. Acknowledging the distinct locomotion styles of various spider species brings to light the need for clear definitions in how we understand arachnid movement.

Jonas Wolff from the University of Greifswald commented on the distinctions between different spider movement styles, noting that “the flic-flac is a special type of locomotion” that is only effective downhill on sand. This highlights the intricate nature of spider mobility and illustrates that not all rapid movements should be equated with running.

The study’s findings offer new insights into the evolutionary adaptations of spiders, raising questions about survival strategies that prioritise speed in certain species. As researchers continue to delve deeper into the mechanics of spider locomotion, the potential impact of environmental changes on these species will also need careful consideration.

For a creature that often inspires both awe and fear, the Australian jungle huntsman spider’s newfound distinction paints a vivid picture of the myriad forms of life that inhabit our planet. The determination of speed among spiders not only furthers our understanding of these fascinating arachnids but also reflects the broader dynamics of evolution and adaptation in the animal kingdom. As the results await further validation through peer review, the ongoing exploration of spider behaviours promises even more revelations in the future.