European hare adaptions for high speed running in hares include wider nostrils and larger hearts. In comparison to the European rabbit, the hare has a proportionally smaller stomach and caecum. This hare is one of the largest of the lagomorphs. Its head and body length can range from with a tail length of . The body mass is typically between . The hare's elongated ears range from from the notch to tip. It also has long hind feet that have a length of between . The skull has nasal bones that are short, but broad and heavy. The supraorbital ridge has well-developed
European rabbit bark. Blackberries are also eaten, and captive-bred European rabbits have been fed on fodder consisting of furze and acorns, which can lead to considerable weight gain. The European rabbit is a less fussy eater than the brown hare: when eating root vegetables, the rabbit eats them whole, while the hare tends to leave the peal. Depending on the body's fat and protein reserves, the species can survive without food in winter for about 2–8 days. Although herbivorous, cases are known of rabbits eating snails. Like other leporids, the European rabbit produces soft, mucus-covered faecal pellets, which are ingested directly from