Tasmanian devils can take prey up to the size of a small kangaroo, but in practice they are opportunistic and eat carrion more often than they hunt live prey. Although the devil favours wombats because of the ease of predation and high fat content, it will eat all small native mammals such as bettong and potoroos, domestic mammals (including sheep), birds, fish, fruit, vegetable matter, insects, tadpoles, frogs and reptiles. Their diet is widely varied and depends on the food available. Before the extinction of the thylacine, the Tasmanian devil ate thylacine joeys left alone in dens when their parents were away. This may have helped to hasten the extinction of the thylacine, which also ate devils. They are known to hunt water rats by the sea and forage on dead fish that have been washed ashore. Near human habitation, they can also steal shoes and chew on them, and eat the legs of otherwise robust sheep when they have slipped in wooden shearing sheds, leaving their legs dangling below. Other unusual matter observed in devil scats includes collars and tags of devoured animals, intact echidna spines, pencil, plastic and jeans. Devils can bite through metal traps, and tend to reserve their strong jaws for escaping captivity rather than breaking into food storage. Due to their relative lack of speed, they can not run down a wallaby or a rabbit, but they can attack animals that have become slow due to illness. They survey flocks of sheep by sniffing them from 10–15 m (33–49 ft) away and attack if the prey is ill. The sheep stamp their feet in a show of strength.Despite their lack of extreme speed, there have been reports that devils can run at 25 km/h (16 mph) for 1.5 km (0.93 mi), and it has been conjectured that, before European immigration and the introduction of livestock, vehicles and roadkill, they would have had to chase other native animals at a reasonable pace to find food. Pemberton has reported that they can average 10 km/h (6.2 mph) for "extended periods" on several nights per week, and that they run for long distances before sitting still for up to half an hour, something that has been interpreted as evidence of ambush predation.Devils can dig to forage corpses, in one case digging down to eat the corpse of a buried horse that had died due to illness. They are known to eat animal cadavers by first ripping out the digestive system, which is the softest part of the anatomy, and they often reside in the resulting cavity while they are eating.On average, devils eat about 15% of their body weight each day, although they can eat up to 40% of their body weight in 30 minutes if the opportunity arises. This means they can become very heavy and lethargic after a large meal; in this state they tend to waddle away slowly and lie down, becoming easy to approach. This has led to a belief that such eating habits became possible due to the lack of a predator to attack such bloated individuals.Tasmanian devils can eliminate all traces of a carcass of a smaller animal, devouring the bones and fur if desired. In this respect, devils have earned the gratitude of Tasmanian farmers, as the speed at which they clean a carcass helps prevent the spread of insects that might otherwise harm livestock. Some of these dead animals are disposed of when the devils haul off the excess feed back to their residence to continue eating at a later time.The diet of a devil can vary substantially for males and females, and seasonally, according to studies at Cradle Mountain. In winter, males prefer medium mammals over larger ones, with a ratio of 4:5, but in summer, they prefer larger prey in a 7:2 ratio. These two categories accounted for more than 95% of the diet. Females are less inclined to target large prey, but have the same seasonal bias. In winter, large and medium mammals account for 25% and 58% each, with 7% small mammals and 10% birds. In summer, the first two categories account for 61% and 37% respectively.Juvenile devils are sometimes known to c

Question: What does their diet depend on?
Answer: food available

Question: whose respect has the devils earned?
Answer: Tasmanian farmers