Biomechanics includes the principles of statics and dynamics. Statics is defined as the principles of construction of different body parts that result in maintaining the equilibrium of the body both during rest and in movement.
Dynamics refers to the movement of the body parts during locomotion.
The construction of different body parts vary between the species according to their living status in the environment. For example, carnivores, being predators, must run fast with a short period of time in order to catch their prey. Whereas the body parts of the herbivores are constructed in such a manner to bear the heavy weight of the contents of the body cavity (takes large quantity of poorly digestible food) and also enable continuous movement for long distances while grazing.
However, though horse is an herbivore, it is able to run fast and carry heavy loads for a longer period of time without fatigue due to the development of passive support mechanisms. Whereas these supportive mechanisms have not developed in dog, because they have a lower body weight and takes highly digestible and high energy diet
