Speed of a chameleons tongue??
- Thread starter pr3mo15
- Start date
chameleon97
New Member
FASTAA THAN LIGHTING!! lol i think this would be cool to know, to.
Come on Baseball coaches, we know you have a radar gun for your pitchers!!!
Nick
Nick
Chris Anderson
Dr. House of Chameleons
My PhD research is on chameleon feeding and I use high-speed video to analyze tongue projection and retraction. I film at 3000 frames per second in order to get sufficient temporal resolution when I slow the videos down. The tongue projection velocity will vary based on a lot of parameters including projection distance, temperature, individual, etc., but I have recorded feeding events with projection velocities up to 5.76 meters/second (20.7 km/hr or 12.9 mph). Here is a video you might find interesting: http://www.xplanefreeware.net/cameron/Chameleon.mpg
Chris
Chris
desultadox
Established Member
In the series Life in Cold Blood it is reported that a chameleon's tongue travels up to 13 MPH. So I think Chris' research is right on the money.
Chris Anderson
Dr. House of Chameleons
Lynesso,
I'm the guy in that video. Actually, chameleons live over a very wide range of habitats depending on the species. Some species live in desert sand dunes where body temperature can reach over 39 degrees Celsius (>102 degrees Fahrenheit) and others live in high elevation alpine forests where overnight temperatures can dip below freezing. Even species from more moderate climates experience night temperature drops that can easily dip below 15C at certain times of the year. But, just to be clear, all the temps I was mentioning in that clip are in degrees Celsius.
Chris
I'm the guy in that video. Actually, chameleons live over a very wide range of habitats depending on the species. Some species live in desert sand dunes where body temperature can reach over 39 degrees Celsius (>102 degrees Fahrenheit) and others live in high elevation alpine forests where overnight temperatures can dip below freezing. Even species from more moderate climates experience night temperature drops that can easily dip below 15C at certain times of the year. But, just to be clear, all the temps I was mentioning in that clip are in degrees Celsius.
Chris
Hilikus311
New Member
wow another Ph.D in the room Hola!!luckykarma
New Member
Chris.
How many days did you withhold food so they would strike the prey right away?
Did you find Panthers were more susceptible to cold temp eating than Veils?
How many days did you withhold food so they would strike the prey right away?
Did you find Panthers were more susceptible to cold temp eating than Veils?
Chris Anderson
Dr. House of Chameleons
Its just a matter of training them so they are used to feeding on that setup. The longest I ever do is feed them every third day. Veileds eat a ton. As for other species and how temperature effects them, I don't have a full data set yet of any other species to comment. I'm using the veileds to get the baseline work done and hope to get more information on other species later. I have a couple grant proposals in for funding to do that type of study in Africa in a year or so.
Chris
Chris
luckykarma
New Member
Thanks for all your work in helping us understand our Chams. I'm sure most of us are envious of your job. Good luck on the grants.
Chris Anderson
Dr. House of Chameleons
Lyneeso,
I have >200 of these videos. The problem is they are extremely large (1.5-2.5 GB each) and some of them are "sensitive material" to a certain degree until we get the paper on our findings published. We're hoping that once the paper is published there will be an online supplement to a couple videos. I'm also hoping to set up a personal website for my research, photography, feeding videos, etc., but I'm waiting for Brandy (the E-Zine's webmaster) to get back from her working vacation to help put it together for me. Once its finished I plan on having a variety of feeding videos on there. I have some really interesting ones from some pretty interesting species (Rh. sinosus, B. superciliaris, K. tenuis, to name a few). If you're interested in some cool videos though, you can check out the amphibian feeding videos on my major advisor's website: http://www.autodax.net/feedingmovieindex.html. I recommend the Hydromantes platycephalus, Eurycea wilderae, Bufo terrestris and Cryptobranchus alleganiensis videos myself.
I'll be sure to post a thread here when the paper and my website are finally finished.
Chris
I have >200 of these videos. The problem is they are extremely large (1.5-2.5 GB each) and some of them are "sensitive material" to a certain degree until we get the paper on our findings published. We're hoping that once the paper is published there will be an online supplement to a couple videos. I'm also hoping to set up a personal website for my research, photography, feeding videos, etc., but I'm waiting for Brandy (the E-Zine's webmaster) to get back from her working vacation to help put it together for me. Once its finished I plan on having a variety of feeding videos on there. I have some really interesting ones from some pretty interesting species (Rh. sinosus, B. superciliaris, K. tenuis, to name a few). If you're interested in some cool videos though, you can check out the amphibian feeding videos on my major advisor's website: http://www.autodax.net/feedingmovieindex.html. I recommend the Hydromantes platycephalus, Eurycea wilderae, Bufo terrestris and Cryptobranchus alleganiensis videos myself.
I'll be sure to post a thread here when the paper and my website are finally finished.
Chris
