SLOW LORIS (Nycticebus coucang) - an unlikely animal which is both venomous and poisonous
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The Slow Loris is one of the few mammals which is venomous. In addition, it is the only mammal which is both venomous and poisonous at the same time. Slow lorises produce a toxin on the inside of its elbows which it smears on its young to prevent them from being eaten. In addition it will lick these patches to put the poison in its mouth, giving it a venomous bite used for self defense.
Both venomous and poisonous animals produce a toxin that is injurious or even lethal to another organism. The real difference between the two terms involves how that toxin is delivered.
Venomous organisms deliver or inject venom into other organisms, using a specialized apparatus of some kind (usually fangs or a stinger) Slow Loris toxin is similar to the allergen in cat dander. Loris bites cause a painful swelling, but the toxin is mild and not fatal. Cases of human death have been due to anaphylactic shock.
Poisonous organisms, on the other hand, do not deliver their toxins directly. The entire body, or large parts of it, may contain the poisonous substance. These organisms may be harmful when eaten or touched.
Slow lorises have an unusually low basal metabolic rate. This may be as little as 40% of the typical value for placental mammals of their size, comparable to that of sloths. Since they consume a relatively high calorie diet that is available year round, it has been proposed that this slow metabolism is due primarily to the need to eliminate toxic compounds from their food. For example, slow lorises can feed on Gluta bark, which can be fatal to humans.
Fact Sources: http://en.wikipedia.org/wiki/Slow_loris
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