Rabbits live in burrows in the ground. Each burrow is the home of a single family. The first fossils which can be attributed to this family came from North America but now they are found in every part of the word. Compared to its small body rabbit has large — sized ears. A rabbit is a weak and timid animal and is always surrounded by many enemies. This could result in more dynamic heat exchanger designs that adapt to improve overall efficiency.
In a way, jackrabbits are using their ears as temperature sinks. Imagine homes or other buildings with surfaces that absorbed heat during the day and then retracted inside the home to help warm it during cooler nighttime temperatures.
Small leaves are more effective at keeping cool and protecting insect eggs from fatally high temperatures. Flight muscles of the western honey bee warm the brood nest by contracting without wing movement and transferring heat to brood cells. It has been suggested that large ears, with their network of blood vessels, may serve to radiate heat to the sky while the animal is resting in the shade, so helping to lower its body temperature.
Hill, D. Christian, J. If air temperature exceeds body temperature, the animal must either store heat or resort to the evaporation of water. Mitchell, Warren P. By making their hairs stand up, numbats expose more skin to the sun and create an insulating layer of air to reduce heat loss.
Camel fur and sweat glands combine to form a powerful temperature management system. Aquaporin molecules form a channel that allows water to move across cell membranes. Randomly arranged filaments scatter all wavelengths of light, and their optimized spacing maximizes the effect.
We use cookies to give you the best browsing experience. By clicking the Accept button you agree to the terms of our privacy policy. The real advantage that rabbit ears give is their directional hearing.
Rabbit ears can move and swivel completely independently from each other. This gives rabbits the ability to pinpoint exactly where a sound is coming from. Did you ever wonder why you never really see lop eared rabbits in the wild? This is because their ears are not as good at either of the two main functions of rabbit ears.
The mutation for lop eared rabbits has been recorded and does occasionally occur in the wild, but it is incredibly rare. Instead, these rabbits have mostly been bred by humans for their cute appearance.
There are only a handful of recognized rabbit breeds that have lop ears, but they are very popular as pets because of their tendency to have friendly and puppy-like personalities. While rabbit ears are amazing organs that play an important role in their day-to-day life, they are also susceptible to some dangerous infections.
If left untreated, these illnesses can be painful for the rabbit, and lead to much more serious diseases. The outer ear can be infected by a parasite known as ear mites. This tiny insects climb into the rabbits ear canal and cause painful crusting on the rabbits ear.
If left untreated, this infestation could result in a much more serious ear infection. Symptoms of ear mites include:. Ear mites are spread through contact with another infected animal, so the best prevention is to make sure you wash your hands and clothing before you handle your rabbit. This is especially important if you have interacted with another rabbit.
This is even a best practice if there are no symptoms of ear mites showing. The early signs are very difficult to see. Head tilt is a symptom of many different illnesses, from the rabbit cold to a stroke. Head tilt occurs because of damage, pressure, or an infection in the inner ear. The rabbit no longer has a clear idea of where they are in space, and their muscles compensate incorrectly because of the confused perception.
Sometimes head tilt is cure-able, and the rabbit will return to normal after a cycle of antibiotics. But sometimes it is more permanent, especially if the head tilt occurred as the result of a more serious condition like a stroke.
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