Red bull assassin, an adult spider, uses small fangs to deliver a mild venom that functions both defensively and for prey capture. Animals such as humans, cats, dogs, and small mammals like mice may experience discomfort or poisoning following a bite. Typically, the effects of the venom are minimal, causing temporary pain or irritation rather than severe harm. The toxin's impact varies across species but is generally not life-threatening. This spider's venom has evolved primarily for hunting rather than for protection against larger animals.