How sensitive is a grey seal's hearing on land? How sensitive is a dog's hearing on land? Is #2 better than #1?
Grey seal
Grey seals have no ear flaps and their ears canals are filled with wax. Grey seals hear better underwater when their ears open like a valve. Dogs have sensitive ears that can hear as far as a quarter of a mile away.
species of seal
Would a dog respond to bell before Grey seal?