short answer : hearing
long answer (found on Petplace.com) To a rabbit hearing is a vital sense, hence the large upright ears. The auditory system is used to detect predators, as well as to help a rabbit perceive the area around him. Acoustics help to overcome the reduced visual abilities by allowing the rabbit to navigate without difficulty. Sound waves bounce off objects, allowing the rabbit to recognize the arrangement of his surroundings. Most rabbits have large, erect ears. When alert, the ears move forward and backward as they attempt to pinpoint the danger. When the rabbit is relaxed, the ears lie along his back, but they are quite responsive to noise. The slightest sound can be detected from very far away. A rabbit's sense of sound is vastly developed, far more finely tuned than his vision.
Both the external ears of humans and rabbits serve to collect and amplify sound waves to the middle ear. Their structures include the pinna (ear flap) and ear canal. However, rabbits' ears are larger and more mobile, enabling them to better detect predators and prey through sound localization.
Rabbits are tattooed in their left ear.
they get brown ear when they are infected with ear mites
take it to the vet
when there scred
Hop i think
That's a dumb question. Nobody cares if it is or it isn't
Lop ears in rabbits are a genetic trait where the ear cartilage is floppier than normal, causing the ears to hang down. This trait is passed down through generations and is commonly bred intentionally in certain rabbit breeds for their unique appearance.
Yes, the lop ear gene is recessive since it is a mutation.
Yes, when only one ear flops down in rabbits for any period of time it usually is a good indicator that they only have a week or two left to live. Sorry :(
Rabbits have long external ears. Frogs do not have external ears. Or, maybe they have some kind of hole at most. Take a look at some pictures of frogs.
The function of semi circular canal in the ear is balance and orientation