Huntsman spiders, known for their impressive leg spans that can reach up to 15 centimeters (6 inches) in some species, are frequently encountered in homes and other human-populated areas. A common question arises regarding their agility: can huntsman spiders jump?
Huntsman Locomotion
Huntsman spiders generally do not jump like true jumping spiders, which use specialized hydraulic systems for leaping. While they may appear to jump, especially when startled, their primary movements are rapid scuttling and running. Their speed is a defining characteristic; some species cover 30 to 40 times their body length per second. This translates to speeds of up to 5 meters (approximately 16 feet) per second for larger specimens, roughly half the maximum speed of a human sprinter.
The unique leg structure of huntsman spiders, with legs twisted to spread forwards and laterally in a crab-like fashion, allows for this agility. This arrangement enables them to move quickly in any direction, including sideways, and navigate various surfaces. Their hairy feet provide exceptional grip, allowing them to climb walls and ceilings. As active hunters, they rely on speed and agility to pursue prey, not webs.
Dispelling Misconceptions About Huntsman Movement
The perception that huntsman spiders can jump often stems from their sudden, darting movements. When threatened or disturbed, their rapid bursts of speed and ability to quickly change direction create the illusion of a leap. Their large size amplifies this, making swift movements appear more dramatic.
Another behavior contributing to this misconception is their tendency to drop rapidly from a height when disturbed. This quick descent is not a controlled jump but a defensive maneuver to escape perceived danger. People often misinterpret these swift, unexpected actions as intentional jumps.
Encountering Huntsman Spiders
Huntsman spiders are commonly found in warm, temperate to tropical regions globally, including Australia, Africa, Asia, and the Americas. They frequently seek shelter in crevices, under tree bark, and often enter human dwellings, cars, and sheds. Their flattened bodies allow them to squeeze into surprisingly small spaces.
These spiders are generally not aggressive towards humans and prefer to flee when approached. Bites are rare and typically occur only if the spider feels threatened, provoked, or accidentally trapped. They play a beneficial role in controlling insect populations by preying on pests like cockroaches, mosquitoes, and flies. If a huntsman spider is found indoors, a safe removal method involves placing a container over it and sliding paper or cardboard underneath to gently relocate it outdoors.