How Many Times Louder Do Dogs Hear?
How Many Times Louder Do Dogs Hear? Species Approximate Range (Hz) human 64-23,000 dog 67-45,000 cat 45-64,000 cow 23-35,000 How long will a female dog accept a male? Usually the discharge decreases and becomes lighter, almost pink, in colour. The vulva becomes very enlarged and soft, and the bitch will be receptive to the male.