What is the source of the pressure that has caused coyotes, which were once essentially diurnal, to adjust to a more nocturnal behavior?

The source of the pressure that has caused coyotes, which were once essentially diurnal, to adjust to a more nocturnal behavior is the presence of more aggressive diurnal predators, more commonly, lions. Lions only hunt in the day which limits the activity of the coyotes. As a result, the coyotes change their hunting schedules to nighttime to reduce competition.

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on