SNAKE POISON
GOME poisonous snakes can bite without poisoning and some cannot. The way that poisonous snakes use their fangs to inject poison is one of the most wonderful things in Nature, and in the case of some of them-tor instance, the common adder or viper, which lives all over Great Britain-this poison fang and its venom are only used as a means of selfdefence, or for getting food. But the adder as a rule does not use its poison fang when it pites the animal on which it feeds, aud so it has a very curious arrangement, by means of which these fangs are laid flat back in the roof of the mouth out of the way of the ordinary teeth which are used for feeding. Thus the adder, cau use one or other sets of teeth just as it likes when it wishes to kill its foe, and it can tuck its fangs securely Out of the way and use its ordiuary teeth when it wishes tu swallow food. In some of the other poisonous snakes ° the fangs are fixed, and cannot be used in this way.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19360904.2.84
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Radio Record, 4 September 1936, Page 56
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189SNAKE POISON Radio Record, 4 September 1936, Page 56
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