Litters of Rabbits succeed one another rapidly between February and September; less frequently in the autumn and winter months. The litters vary from two or three to eight, the higher numbers being those of the warmer months. Young Rabbits are but sparsely clothed and are blind and deaf, the ears being closed and having no power of movement until about the tenth day. The eyes open a day later. In a few days more they can run, and make short excursions from the underground nest. Before they are a month old they are capable of independent existence. Until then the mother will defend them against all-comers, including the Weasel and Stoat, using her powerful hind feet against her adversary, and to good purpose. The Rabbit is a much smaller animal than the Hare, greyer in colour, with smaller ears and feet, and the black tips of the ears so noticeable in the Hare, are in the Rabbit much reduced or altogether wanting. Its average weight and measurements are: weight, 2-1/2 to 3 lbs.; length of head and body, 16-1/2 ins., tail, 3-3/4 ins., ear, 3 ins., hind foot with claws, 3-3/4 ins. It also differs from the Hare in the structure of its heavier skull, its smaller eyes, shorter ears, and lesser specialisation of the limbs for speed in running. It is believed that originally the Rabbit was a native only of the western parts of the Mediterranean region--where it still teems--and to have spread northwards largely by human aid. It is known to have been introduced to Italy from Spain by the Romans, who are usually credited with having brought it to Britain. It is now thought, however, that we are indebted to the Normans for its presence. It was certainly here in the twelfth century. The name Rabbit is from the French, and originally indicated the suckling young; the adults being known as Conies.