What concentration of venom of Indian Cobra(naja naja) is lethal for man? How long does it take for a cobra bite to cause death? Does the cobra venom get oxidised in air? What is the time limit within which the antidote is effective? How does cobra inject venom into human body? Since it is a neurotoxic venom, how does it effect the nervous system? Are there any snake venom research centres in India/US?
2007-11-10 04:31:35 · 5 answers · asked by ranju 1 in Science & Mathematics ➔ Zoology
SEE ATTACHED LIST OF TOXICITY OF POISONOUS SNAKES;LD50s of 25 venomous snake species
(if you are a mouse)
Scientific name
Common name
Murine LD50 mg/kg
(sub-cutaneous, 0.1% bovine
albumin in saline)
Murine LD50 mg/kg
(sub-cutaneous, saline)
Oxyuranus microlepidotus Inland taipan
0.010
0.025
Pseudonaja textilis Eastern brown snake
0.041
0.053
Oxyuranus scutellatus scutellatus Coastal taipan
0.064
0.099
Notechis scutatus scutatus Mainland tiger snake
0.118
0.118
Notechis ater niger Peninsula tiger snake
0.099
0.131
Notechis ater occidentalis Western tiger snake
0.124
0.194
Enhydrina schistosa Beaked sea snake
0.173
0.164
Notechis ater serventyi Chappell Island tiger snake
0.271
0.338
Acanthophis antarticus Common death adder
0.338
0.400
Pseudonaja nuchalis Gwardar
0.338
0.473
Austrelaps superbus Lowland copperhead
0.500
0.560
Naja naja Indian cobra
0.500
0.565
Tropidechis carinatus Rough-scaled snake
1.09
1.36
Pseudechis papuanus Papuan black snake
1.36
1.09
Hoplocephalus stephensi Stephen's banded snake
1.44
1.36
Ophiophagus hannah King cobra
1.91
1.80
Pseudechis guttatus Spotted black snake
1.53
2.13
Pseudechis colletti Collett's snake
-
2.38
Pseudechis australis Mulga snake
1.91
2.38
Pseudechis porphyriacus Red-bellied black snake
2.53
2.52
Cryptophis nigrescens Small-eyed snake
-
2.67
Crotalus adamentus Eastern diamondback rattlesnake
7.70
11.4
Demansi olivacea Marbled headed whip snake
-
>14.2
Bothrops atrox Barba amarilla
-
>27.8
Suspected highly toxic Australian species not included on the list
Acanthophis amstrongi Black headed death adder
Acanthophis hawkei Barkly tableland death adder
Acanthophis praelongus Northern death adder
Acanthophis pyrrhus Desert death adder
Austrelaps labialis Highland copperhead
Austrelaps ramsayi Pygmy copperhead
Echiopsis atriceps Lake Cronin snake
Echiopsis curta Bardick snake
Hoplocephalus bitorquatus Pale-headed snake
Hoplocephalus bungaroides Broad-headed snake
Notechis ater ater Krefft's tiger snake
Notechis ater humphreysi King Island/Tasmanian Tiger snake
Oxyuranus scutellatus canni Papuan taipan
Pseudechis butleri Butler's snake/spotted mulga
Pseudonaja guttata Speckled brown snake
Pseudonaja inframacula Peninsula brown snake
Pseudonaja ingrami Ingram's brown snake
Pseudonaja modesta Ringed brown snake
There is no evidence to suggest that any of these snakes (with the possible exceptions of Hoplocephalus bitorquartus and Pseudonaja modesta) are dramatically less toxic than closely related (and already measured in the top 25) species.
As is faily evident, the list of the most toxic snakes is long overdue for an update.
Much of th
2007-11-10 06:31:14 · answer #1 · answered by Loren S 7 · 0⤊ 0⤋
A cobra also hunts using its venom like biting a rat, wait and then follow it with the heat trail (infrared) then eat the rat. So the poison for the rat is part of the food for the cobra.. What is ineresting is King cobra bites other snakes and make them die and then eat that snake ! So snakes venom is not poisoning it, rather it is there to feed and defend it ! Certain species had developed an antidote by nature to snakes venom and those species can survive even if it is biten by a snake with very minor alergic reaction or no reaction. Watch the wonderful Discovery Channel and you will get more interesting info.
2016-04-03 05:46:47 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The lethality has already been answered very well. There are at least two snake venom research centers in Florida alone: Miami Serpentarium laboratories in Punta Gorda and Reptile World Serpentarium in St. Cloud. As far as India is concerned, I'd be amazed if there were no venom research labs in either Dehli or Mumbai.
2007-11-13 17:09:42 · answer #3 · answered by SCE2AUX 2 · 0⤊ 0⤋
The cobra venom is very lethal.It depends on the quantum of venom that gets into the blood vessels and the proximity of the bitten part to the heart or brain.
The death may vary from 15 Hrs to two days depending on the above factors.Panic often hastens the risk while stubbornness delays the risk.
2007-11-11 01:45:15 · answer #4 · answered by karikalan 7 · 0⤊ 0⤋
very! Lethal! Yes, there are snake research facilities both in India and U.S.
2007-11-10 04:56:57 · answer #5 · answered by menome b 4 · 0⤊ 0⤋