Hard ticks find hosts by questing: climbing onto grass blades or low vegetation, anchoring with the back legs, and waving the front legs in the air to detect a passing animal's CO2, heat, and odors. They cannot jump or drop from trees - the popular fear of ticks falling from branches is folklore.
Questing hard ticks always climb upward when they catch a host. After they latch onto a pant leg they crawl steadily up until they reach…
Folk wisdom holds that ticks fall out of trees onto people - this is wrong. Ticks cannot jump, fly, or drop from height; they quest on…
Ticks find hosts using Haller's organ, a sensory pit on the tarsus of each foreleg. It carries chemoreceptors tuned to ammonia, carbon…
Hard ticks (Ixodidae) take one large blood meal per life stage and stay attached for days. Soft ticks (Argasidae), including Ornithodoros,…
Within 5 to 30 minutes of biting, a hard tick begins secreting a glycine-rich saliva that hardens around its mouthparts into a cement…
Soft ticks in the genus Ornithodoros can survive years between blood meals and live for a decade or more. A single infected tick can sit…