| It's olfactory faculties are highly developed and can distinguish people even after several years. Eyesight is poor. Hence, in the wild they feed more on less colourful but highly scented fruits! Like jackfruit that attracts them from kilometers even in new moon nights. Their skin is devoid of sweat glands and temperature regulation is done by mechanisms like pumping the blood through the pinna/external ear. Ears act like fins of an air-cooled engine and they flap it too frequently when the ambient temperature is high. Laymen attribute these flapping of ears as playing the tunes of 'panchavadyam'! (Festival instrumental orchestra.) Skin is very thick and hence known as pachyderm but still sensitive to pain like any other animal. Several folds of wrinkles on the skin are a mechanism to increase the surface area and the radiation of heat from the body. Elephants have only two pairs of teeth at a time and are replaced five times during its lifetime and thus have six sets of teeth in total. The last one is replaced at the age of 40 years and the animal lives up to 60 years. By this time, the teeth are worn out. The replacement of teeth does not take place by shedding or eruption but by forward progression from the back, like a conveyor belt. Tusk is an outgrowth of upper incisor teeth and grows 8 -10 cm every year. In captive elephants they are cut periodically. The elephants got their name 'Danti' from the Sanskrit word 'Dantam' meaning tooth. Like left handed and right-handed persons they too preferentially make use of right or left tusks as the case may be. |
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