tag:blogger.com,1999:blog-33244618.post8544947702327146663..comments2023-12-16T00:39:47.007-08:00Comments on Lassie, Get Help: Dog bites and bite forceLuisahttp://www.blogger.com/profile/04042236324318156854noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-33244618.post-35920192937989944362015-09-15T10:39:41.521-07:002015-09-15T10:39:41.521-07:00In 2005 the lion's bite force was done on a yo...In 2005 the lion's bite force was done on a young lion and the bite force of the tiger on a adult. In 2012 the National Geographic did the bite force on a adult lion. It was similar to the tiger. Anonymoushttps://www.blogger.com/profile/17956915765056490031noreply@blogger.comtag:blogger.com,1999:blog-33244618.post-21762985830895815142010-02-13T10:05:08.524-08:002010-02-13T10:05:08.524-08:00The maximum of bite force(force de morsure / macho...The maximum of bite force(force de morsure / machoire) officiel of a man human , is of around 120kg ( test bite force of monkeys: orang-outan: 385livres = 174kg(estimation maximum of bite force of orang-outans: + of 200kg of pressure !) ; rhesus macaque: 500newtons = 50kg ! / Différents tests of bite force(force de morsure / machoire): Komodo dragon: 74kg ; turtle snapp(tortue-alligator): 455kg ; devil tasmanian: 395livres = 178kg ; rat: 50newtons = 5kg ; macaw parrot(perroquet ara):167livres = 75kg ; 2 big crocodiles: 2500livres and 5000livres( 1133kg et 2265kg ) ; 2 pit-bulls: around 107kg et around 127kg ; 2 rottweilers: 149kg et around 161kg ; humans(mens): 58kg , 77kg , 89kg et 120kg(records) !Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-33244618.post-34129342521646533932010-02-13T09:38:49.685-08:002010-02-13T09:38:49.685-08:00test of bite force in national geographic: tosa-in...test of bite force in national geographic: tosa-inu(81kg of weight): 556livres = 251kg ; american bulldog: 305livres = 138kg ; belge shepherd(malinois): 195livres = 88kg ; holland shepherd: 105kg . / The maximum of bite force of big dogs(mastiffs) and of big wolves , is around of 200kg at 300kg of pressure maximum !Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-33244618.post-69719182155924506442009-01-23T05:29:00.000-08:002009-01-23T05:29:00.000-08:00"The 1992 Guinness Book of Records records the ach..."The 1992 Guinness Book of Records records the achievement of a bite strength of 975 lbf (4337 N) for two seconds." <BR/><BR/>Although this is obviously a freak case. It would suggest that humans have the capability to exert more force in a bite than most dogs. This is actually a result of humans having a much smaller jaw than most dogs. <BR/><BR/>"What distinguishes the masseter is not anything special about the muscle itself, but its advantage in working against a much shorter lever arm than other muscles."<BR/><BR/>A long muzzle is a disadvantage when applying force to a bite. A dog with a shorter solid jaw should "theoretically" be able to bite a lot harder. <BR/><BR/>To use an analogy consider the difference between a pair of long bladed hedge trimmers and a lopper designed to cut through branches. Due to the additional leverage offered by the loppers you will be able to apply much more force with the same effort, this theory applies to jaws as well.<BR/><BR/>Incidentally I would be interested to know how they measured the force of a bite. Logic would dictate that a bite would be far more powerful when it originates from the back of the mouth. Animals with long jaws like an Alligator should have a huge variance in the force their mouths can exert from the front teeth to the back.<BR/><BR/>One more thought... How do we know that these animals are biting with their full force? You can't talk to an animal and inform it that it has to apply 100% effort to its bite. I am sure that the man who managed the 975lb bite was very motivated, and had probably developed some kind of weird bite training regime; the same cannot be said of our animal friends!!!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-33244618.post-36575788878768579792008-01-28T10:03:00.000-08:002008-01-28T10:03:00.000-08:00"favour"? Por favor ;~)Interesting thoughts on mu..."favour"? <I>Por favor</I> ;~)<BR/><BR/>Interesting thoughts on muzzle length. Have you seen <A HREF="http://dogbitesinformationandstatistics.blogspot.com/2008/01/bite-force-links-from-pubmed.html" REL="nofollow">these two links</A>?Luisahttps://www.blogger.com/profile/04042236324318156854noreply@blogger.comtag:blogger.com,1999:blog-33244618.post-79038117623107210082008-01-28T07:40:00.000-08:002008-01-28T07:40:00.000-08:00Oops - I meant 'put another nail into the coffin o...Oops - I meant 'put another nail into the coffin of...'<BR/><BR/>I need a holiday.<BR/><BR/>Thanks for the link, Luisa! I'll return the favour later on this morning - your article is great and keeps the heat on these charlatans!<BR/><BR/>Incidentally, I believe another important factor in bite-force is length of muzzle.<BR/><BR/>The longer the muzzle, the more force in the bite.<BR/><BR/>A dachshund like my old guy has a grip like a moustrap. My Griffs, with their monkey faces, have adequate force for chewing or eating but a very weak jaw by comparison with the old guy.<BR/><BR/>I haven't seen this anywhere, not that I've searched too hard, but it seems reasonable.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-33244618.post-51186491660493217062008-01-27T09:54:00.000-08:002008-01-27T09:54:00.000-08:00Thanks so much for this comment -- I'm editing the...Thanks so much for this comment -- I'm editing the post to add Alan's "note from a scientist" as well as your remarks on the Beck/Clifton/Coren phenomenon. A phenomenon that deserves a post of its own, really.Luisahttps://www.blogger.com/profile/04042236324318156854noreply@blogger.comtag:blogger.com,1999:blog-33244618.post-76619880594992780642008-01-27T07:12:00.000-08:002008-01-27T07:12:00.000-08:00Good post, this can't be said often enough. I'm o...Good post, this can't be said often enough. I'm on the run this morning but will read it in detail later.<BR/><BR/>I put something up on this in 2006, thought you might be interested:<BR/><BR/>http://caveat.blogware.com/blog/_archives/2006/7/23/2152355.html<BR/><BR/>It gets read quite often to this day. Not great writing but I hope it gets the point across to people.<BR/><BR/>There is a big problem with journals such as the Pediatric one you mention making unsupportable statements about bite pressure.<BR/><BR/>Bite pressure, the 'psi' measurement, is not the same as bite force, which is measured in Newtons and is not area-specific. At my post is a link to how to convert Newtons to psi.<BR/><BR/>In the Lindner study you cited (the only study of its kind and a pilot at that) the highest bite force was for a Rottweiler with a lot of training. It measured at 1394 N, which is around 330 pound-force which is - wait for it - about .202 psi. Yes, .202 psi.<BR/><BR/>I corresponded with Canada's version of Beck/Clifton, Stanley Coren, when I found him making the '2000 psi' statement in a little book I'd bought about 'dangerous dogs'. He switches it between 'rottweilers' and 'pit bulls' depending on the day of the week.<BR/><BR/>He could not support it, had no idea where he'd heard it, hemmed and hawed and ducked and weaved but didn't have a reference for it.<BR/><BR/>Trouble is, people like Coren or Beck, who the media think are experts, or journals such as the Pediatric one, merrily repeat these things and they put another coffin into not only certain breeds, but dog ownership as a whole.<BR/><BR/>I might contact the journal, ask them to query the authors about the source of the measurement because I've looked 15 ways to Sunday and I can't find it. Either can the people who casually repeat it. Go figure.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-33244618.post-81638631261378666982008-01-26T09:42:00.000-08:002008-01-26T09:42:00.000-08:00[quote]Last year my male pit bull was in such agon...[quote]Last year my male pit bull was in such agony from injury-exacerbated arthritis of the spine[/quote]<BR/><BR/>I can relate to this,my male "Pit Bull" unfortunately had cancer in his spine,but yet when handled he just leaned into people for comfort.<BR/>I would have bitten.<BR/><BR/>Unfortunately the Press and most of the public are going to seize upon<BR/>the following words <BR/><BR/>Pit Bull Terrier<BR/>47%<BR/>Sheet metal<BR/>Rottweiler<BR/>2000 psi<BR/><BR/>They are looking for sound bites,pictures(Beware of dog signs),anything that fits their agenda now.<BR/><BR/>But I`m off to read all the great info you have provided so I will be able to defend my next Pit Bull in court.<BR/><BR/>Thanks for all the research.<BR/>Appreciate it.No BSLhttps://www.blogger.com/profile/08607153892643755436noreply@blogger.com