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the claim

Ticks detect hosts by carbon dioxide.

the verdict
INSUFFICIENT LEANING
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that ticks detect hosts by carbon dioxide?

Unclear. Several sources state that ticks sense carbon dioxide through sensilla of Haller's organ as one of the host-derived cues used in host-seeking, though the detailed studies focus on radiant heat rather than CO2 itself. No source disputes that ticks detect CO2.

Verdict: PARTIAL LEAN · 4 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 4
Ticks Home in on Body Heat: A New Understanding of Ectoparasite Host-Seeking and Repellent Action
2019
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Ticks Home in on Body Heat: A New Understanding of Ectoparasite Host-Seeking and Repellent Action. (2019). doi.org. https://doi.org/10.1101/564179

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More for · 3
Ticks home in on body heat: A new understanding of Haller’s organ and repellent action
2019
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Ticks home in on body heat: A new understanding of Haller’s organ and repellent action. (2019). doi.org. https://doi.org/10.1371/journal.pone.0221659

Chemically mediated behavior in Acari: Adapations for finding hosts and mates
1986
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Chemically mediated behavior in Acari: Adapations for finding hosts and mates. (1986). doi.org. https://doi.org/10.1007/bf01638998

Ticks
2023
Get citation
Johnson, N. (2023). Ticks. play.google.com. https://play.google.com/store/books/details?id=02CZEAAAQBAJ&source=gbs_api

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held for human review18 Oct 2026
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