Bite force quotient
Bite force quotient (BFQ) is the regression of the quotient of an animal's bite force in newtons divided by its body mass in kilograms.[1][2] It does not take into account sharpness of teeth or other differences in tooth form; an animal with sharp teeth will project its bite force over a small surface area, while an animal with flatter teeth will spread the force out over a larger area.
Hite et al. [3], who include data from the widest range of living mammals of any bite force regression to date, produce from their regression the BFQ equation:
where BF = Bite Force (N), and BM = Body Mass (g)
Carnivore BFQs
| Animal | BFQ |
|---|---|
| Aardwolf | 77 |
| European badger | 109 |
| Asiatic black bear | 44 |
| American black bear | 64 |
| Brown bear | 78 |
| Domestic cat | 58 |
| Cheetah | 119 |
| Cougar | 108 |
| Coyote | 88 |
| Dhole | 132 |
| Dingo | 125 |
| African wild dog | 142 |
| Domestic dog | 117 |
| Singing dog | 100 |
| Arctic fox | 97 |
| Cape genet | 48 |
| Grey fox | 80 |
| Red fox | 92 |
| Grey wolf | 136 |
| Brown hyena | 113 |
| Spotted hyena | 117 |
| Jaguar | 137 |
| Jaguarundi | 75 |
| Leopard | 94 |
| Clouded leopard | 137 |
| Lion | 112 |
| Northern olingo | 162 |
| Sand cat | 136 |
| Sun bear | 160 |
| Least weasel | 164 |
| Spotted-tailed quoll | 179 |
| Tasmanian devil | 181 |
| Tiger | 127 |
| Thylacine | 166 |
Table sources (unless otherwise stated):[2][4][5][6]
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References
- The science and engineering of cutting: the mechanics and processes of separating and puncturing biomaterials, metals and non-metals, Antony Atkins, Butterworth-Heinemann, 2009, p. 311, 413pp, ISBN 978-0-7506-8531-3 (retrieved 15 August 2010 via Google Books)
- Wroe S, McHenry C, Thomason J (March 2005). "Bite club: comparative bite force in big biting mammals and the prediction of predatory behaviour in fossil taxa". Proc. Biol. Sci. 272 (1563): 619–25. doi:10.1098/rspb.2004.2986. PMC 1564077. PMID 15817436.
- Hite, Natalee J.; Germain, Cody; Cain, Blake W.; Sheldon, Mason; Perala, Sai Saketh Nandan; Sarko, Diana K. (2019). "The Better to Eat You With: Bite Force in the Naked Mole-Rat (Heterocephalus glaber) Is Stronger Than Predicted Based on Body Size". Frontiers in Integrative Neuroscience. 13: 70. doi:10.3389/fnint.2019.00070. ISSN 1662-5145. PMC 6904307. PMID 31866840.
- Fish That Fake Orgasms: And Other Zoological Curiosities, Matt Walker, Macmillan, 2007, pp. 98-9, ISBN 978-0-312-37116-6 (retrieved 15 August 2010 from Google Books)
- Per Christiansen; Stephen Wroe (2007). "Bite Forces and Evolutionary Adaptations to Feeding Ecology in Carnivores". Ecology. 88 (2): 347–358. doi:10.1890/0012-9658(2007)88[347:bfaeat]2.0.co;2. PMID 17479753.
- http://www.naturalworlds.org/thylacine/biology/behaviour/behaviour_2.htm
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