keinchul

apna vaahya aavaran tyaagate hue ek jaanavar
kekade dvaara aavaran ka tyaag

bahut se jantu apne shareer ka koi bhaag (praaya: vaahya aavaran) samay-samay par nikaalate rahate hain. is kriya ko kechuleekaran (Moulting) kehte hain. pakshiyaaain aadi apne puraane pankh chhodteen hai; kuchh stanadhaari puraane baal tyaagate hain; saaainp evam kai anya sarisrup apni vaahya tvacha tyaagate hain.