Scientists are studying bats and their use of echolocation to learn more about how bats process information to understand and adapt to the world around them. Echoes of hunting They detect and catch their targets through echolocation, or biosonar, the animal equivalent--and precursor--to man-made sonars. How to see what whales hear: biomedical imaging reveals new insights into marine mammal ears
The faster repolarization of the cardiac action potential causes the tenting of the T waves, and the inactivation of sodium channels causes a sluggish conduction of the electrical wave around the heart, which leads to smaller P waves and widening of the QRS complex.
Some people get scared of the presence of any serious heart condition when T-wave abnormalities arises. But this is not always true as these abnormalities are sometimes due to the occurence of some specific causes which can be any disease related to women,presence of fever,metabolic changes in the body and presence of acidosis or alkalosis.