Najakeeper
Arachnoprince
- Joined
- Dec 10, 2010
- Messages
- 1,050
Master of camouflage, the Acanthophis antarcticus from Sydney:
there are many viperidae and crotalinae that use their tails as a caudal lure as well. They are not restricted to using the tail as a defense mechanism. Even the rattlesnakes... Crotalus lepidus klauberi, for example, utilize caudal luring while they are young with a yellow or orange tail to entice lizards. This behavior is known for many of the montane rattlesnake species. pseudocerastes urarachnoides has teh most oddly unique caudal lure... looks like a spider or something.A nice little paradox. An Elapid uses it's tail to entice prey while a Viper uses it to warn off enemies. Parallel opposite evolution.
He was trying to point to the irony there as caudal luring is mostly done by vipers but here it is an elapid filing the viper niche.there are many viperidae and crotalinae that use their tails as a caudal lure as well. They are not restricted to using the tail as a defense mechanism. Even the rattlesnakes... Crotalus lepidus klauberi, for example, utilize caudal luring while they are young with a yellow or orange tail to entice lizards. This behavior is known for many of the montane rattlesnake species. pseudocerastes urarachnoides has teh most oddly unique caudal lure... looks like a spider or something.
To tell you the truth, I haven't read a scientific study on it and I agree there are a lot of vipers, which are very "fast" strikers. The deal with Acanthophis is they are strike ready within .13 to .15 seconds from the moment they start the initial strike. I think that is nothing shy of amazing.When someone tells me SOMETHING is the fastest X in the world.... Relatively speaking, on principle I cannot accept their word, no more than they should accept mine.
I watched the video, and that snake looks to my eye (not exactly a scientific measuring device hahah) no faster than my boa.
Seriously how do you know it's the fastest striking venomous snake? As opposed to a Gaboon Viper, or another pit viper?
Quite some time ago I read of a study using a modified radar gun used by traffic control to measure the speed of various rattlesnakes. I'm wondering if that is still being used in some form. It was interesting that they were getting comprehensible readings of the actual motion, ~450 mph for the western diamondback as example.When someone tells me SOMETHING is the fastest X in the world.... Relatively speaking, on principle I cannot accept their word, no more than they should accept mine.
I watched the video, and that snake looks to my eye (not exactly a scientific measuring device hahah) no faster than my boa.
Seriously how do you know it's the fastest striking venomous snake? As opposed to a Gaboon Viper, or another pit viper?
It was rigged, just like all police radar guns are! J/K heheheheQuite some time ago I read of a study using a modified radar gun used by traffic control to measure the speed of various rattlesnakes. I'm wondering if that is still being used in some form. It was interesting that they were getting comprehensible readings of the actual motion, ~450 mph for the western diamondback as example.
If the truth be told it had to have been. About 3 years later I worked with some techs trying to perfect a fast acquisition configuration. They were versed in RF and refined the source emission into bursts using a staged capacitive discharge along with limiting the emissions so they weren't in danger of cooking the subjects and controlling the emissive scatter sprayed all over the lab. I suggested a cascade jfet array that was far faster than the normal acquisition and extrapolation, and allowed a tightly controlled window. It appeared to me very workable but I have never heard of any follow up work done. Since then of course they have developed a much more accurate sensing system using the doppler effect but I haven't heard of it being used on snakes either.It was rigged, just like all police radar guns are! J/K hehehehe
If the truth be told it had to have been. About 3 years later I worked with some techs trying to perfect a fast acquisition configuration. They were versed in RF and refined the source emission into bursts using a staged capacitive discharge along with limiting the emissions so they weren't in danger of cooking the subjects and controlling the emissive scatter sprayed all over the lab. I suggested a cascade jfet array that was far faster than the normal acquisition and extrapolation, and allowed a tightly controlled window. It appeared to me very workable but I have never heard of any follow up work done. Since then of course they have developed a much more accurate sensing system using the doppler effect but I haven't heard of it being used on snakes either.
PS No, radar guns are radar guns. Quite accurate, but their use must meet certain criteria as the gun held rigidly still and the target within a prescribed trajectory relative to the gun.
I want to know how the hell you got a Death Adder in Germany.I shot this video to show once again how fast Death Adders(Acanthophis) strike. They are the fastest striking snake (A death adder can go from a strike position, to strike and envenoming their prey, and back to strike position again, in less than 0.15 of a second) and the strike is very hard to catch even in 10x slow motion. Amazing creatures really, surely must stay out of the strike range with these puppies.
[YOUTUBE]9-z9fmOC37Q[/YOUTUBE]
( http://www.youtube.com/watch?v=9-z9fmOC37Q )
And here is a picture that I took before feeding, I think it turned out to be a nice one:
Few plastics are fully stable. When they become sticky they (commonly) have reacted with oxygen. I'll trade you for my other's Sony walkman/cellphone, the entire outside coating of which turned to goo. Every now and then, or in the case of cheap manufacturing which skips a process, acrylic sheets as used in terrariums suffer from this. You can actually push a knife or other sharp object slowly right through the sheet. In fact, all acrylics that aren't brittle will permit this, it taking a few weeks for the point to penetrate. But with the cheap or unstable stuff it only takes a couple of hours.If only I could figure out why a Ryobi hand drill I have, which has been stored in a box since 2006 at room temperature is all of a sudden sticky to touch. What's more weird is that of all the plastic pieces on the drill, only the blue plastic is sticky, and only on the exterior, not on in the interior where the battery inserts into. Piece of crap. I WAS going to test out a 2" hole saw bit.
Several species were imported to Europe when Aussie export was open. Several zoos also keep them and have surplus stock to sell. But unfortunately for obvious reasons, gene pool is limited and most snakes are quite inbred.I want to know how the hell you got a Death Adder in Germany.
Thank god that makes me feel alot better.Several species were imported to Europe when Aussie export was open. Several zoos also keep them and have surplus stock to sell. But unfortunately for obvious reasons, gene pool is limited and most snakes are quite inbred.
Well, I am sure some people have smuggled Acanthophis, Pseudechis or Notechis in their underwear to Europe as well at some point. I think Australia's export laws are incredibly stupid. You can buy as much Kangaroo meat as you want but you cannot get a live Kangaroo? Controlled collection and captive breeding is very valuable for the future health of native wildlife. Now, to buy a baby pair of Australian Death Adders in Europe, you need to pay €2000, which in turn fuels more illegal collection and smuggling as it is worth to take the risk for the crooks.Thank god that makes me feel alot better.
I did a search for QUITE a while on the net, and I'm not the only one w/this brand to suffer the fate of bad manufacturing. Well I fixed it for now at least. I rubbed it with alcohol, the whole body, it's not sticky now. Unsure if this was a surface coating that was degrading or the entire blue plastic body. The inside of the battery housing is fine, so I'm thinking it's an exterior finish of sorts, IDK. Another guy used acetone and it didn't come back for him.Few plastics are fully stable. When they become sticky they (commonly) have reacted with oxygen. I'll trade you for my other's Sony walkman/cellphone, the entire outside coating of which turned to goo. Every now and then, or in the case of cheap manufacturing which skips a process, acrylic sheets as used in terrariums suffer from this. You can actually push a knife or other sharp object slowly right through the sheet. In fact, all acrylics that aren't brittle will permit this, it taking a few weeks for the point to penetrate. But with the cheap or unstable stuff it only takes a couple of hours.