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Since many of the foods are abrasive enough to cause attrition, rabbit teeth grow continuously throughout life. [2] Rabbits have a dental formula of 2.0.3.3 1.0.2.2. There are no canines. Three to four millimeters of tooth is worn away by incisors every week, whereas the posterior teeth require a month to wear away the same amount. [3]
They vary in size from 20 to 50 cm (8 to 20 in) and have long, powerful hind legs, shorter forelegs and a tiny tail. The colour is some shade of brown, buff or grey and there is one black species and two striped ones. Domestic rabbits come in a wider variety of colours. Newborn rabbits are altricial (eyes and ears closed, no fur).
This rabbit is medium-sized, measuring 36–48 cm (14–19 in) in total length, including a small tail that averages 5.3 cm (2.1 in). [14] [15] Weight can range from 1.8 to 4.4 lb (800 to 2,000 g), with an average of around 2.6 lb (1,200 g). The female tends to be heavier, although the sexes broadly overlap in size.
Over time, different mammal groups have evolved distinct dental features, both in the number and type of teeth and in the shape and size of the chewing surface. [9] The number of teeth of each type is written as a dental formula for one side of the mouth, or quadrant, with the upper and lower teeth shown on separate rows. The number of teeth in ...
It’s important to take your rabbit to the vet for regular tooth trimming if they have a dental problem that prevents them from being able to do this themselves. 26. Rabbits can get uterine cancer
Leporids are all roughly the same shape and fall within a small range of sizes with short tails, ranging in overall length from the 21 cm (8 in) long Tres Marias cottontail to the 76 cm (30 in) long desert hare. Female leporids are almost always larger than males, which is unusual among terrestrial mammals.
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Occurrence and litter size depend on several factors, including time of the year, weather, and location. The average litter size is four, but can range from as few as two to as many as eight, most of whom do not go on to survive to adulthood. Cottontail rabbits show a greater resistance to myxomatosis than European rabbits. [2]