The frog is an amphibian that lives both in water and on land and needs to adapt to different acoustic environments. The main structure of a frog's ear is a membrane called the tympanic membrane, which is located behind the frog's eye and collects sound waves from the air. The frog's ears have a magical function, which is that they can "shut down". Let's take a look.
One of the problems that frogs have in the water is that the sound in the water is much stronger than the sound in the air, and the sound in the water comes in from all parts of the frog's body, not just through the ears. As a result, the frog's ears are under a lot of pressure, and it is difficult to distinguish the direction and ** of the sound. This is disadvantageous for frogs, as they need to use sound to find food and mates, as well as to avoid enemies and dangers. To solve this problem, frogs have evolved a special mechanism that can close their ears and reduce the effect of sound in the water on them. This is a great help for frogs to survive and reproduce.
How do frogs close their ears?The answer is by a muscle called the tympanic membrane muscle. This muscle connects the frog's eardrum to the skull, and when the frog is in water, this muscle contracts and pulls the eardrum toward the skull, making the eardrum stiff and unable to vibrate. In this way, the eardrum loses the ability to receive sound, which is equivalent to closing the ear.
When the frog leaves the water, the tympanic membrane muscle relaxes, allowing the eardrum to return to its original position and elasticity, and to receive sound again.
Frogs