The series of bodily changes that occur in the female of most mammals from one period of estrus to another. The estrous cycle usually takes place during a specific period known as the breeding season, which ensures that the young are born at a time when the chance of survival is greatest.
ear-to-ear. It's about smiling. Ear-to-ear smile or grin is when you have a very broad and generous smile. Such a smile when each corner of your mouth is by each of your ears. Explain to me why you don't have an ear-to-ear grin right now.
1 Itchy left ear â when you have your left ear itching, it is believed to mean or indicates someone who loves you is talking about you or whomever is talking is saying something nice about you. 2  Itchy right ear â means the opposite of itchy left ear.