Dragon Food
With such massive bodies and demanding lifestyles of
flight and
fire breathing, it is easy to see that a dragon must eat an exorbitant
amount of food. If we are given that the muscle efficiency of dragons
is given as 1 kWh requires about 5,000 Calories, it is clear to see
that if it takes 36 kW for a dragon to fly 10 mph, then it requires
easily more than 120,000 Calories to fly for an hour. With this in
mind, given how much energy we can extract from food, this would lead
to one dragon ravaging an entire countryside of all its sheep, which
would not be practical for an entire species.
google images