Iguanas do have the ability to hear, despite not having external ears like humans do. Instead, they have a unique auditory system that allows them to perceive sounds in their environment. This system includes a visible eardrum, or tympanic membrane, on both sides of their head, which is continuous with the skin surface.
Iguanas have been observed to respond to various auditory cues, indicating that they can hear and interpret sounds to some extent. They can pick up on different frequencies and perceive changes in sound intensity. This suggests that they have a certain level of auditory discrimination.
In my personal experience with iguanas, I have noticed that they are particularly sensitive to certain sounds. For example, they may become alert or even startled by loud noises such as clapping or sudden bangs. This indicates that their sense of hearing is quite acute and that they are capable of recognizing and reacting to specific sounds in their environment.
It is important to note that while iguanas can hear, their auditory capabilities may not be as advanced as those of mammals, such as humans or dogs. Their primary sense is vision, and they rely heavily on their keen eyesight to navigate their surroundings and detect potential threats or sources of food. However, their ability to hear still plays a significant role in their overall sensory perception.
Iguanas can indeed hear, despite not having external ears. Their unique auditory system enables them to perceive sounds and respond to auditory cues in their environment. While their hearing may not be as developed as their vision, it still plays an important role in their sensory perception.