End systolic volume (ESV) â The amount of blood still in the. ventricles after the contraction is complete. End diastolic volume (EDV) â The amount of blood in the. ventricles after they have filled but prior to the beginning of. the contraction.
This is the fastest form of travel for most snakes, but rattlesnakes donât engage in this style of locomotion often. Rattlesnake speeds have not been specifically measured, but they likely travel at about 2 to 3 miles per hour in very short bursts. In comparison, the fastest humans can run up to 28 miles per hour.
A grizzly bear was once clocked while running at 41 miles per hour by a ranger in Denali National Park, Alaska.<br /><br /><br /><br /><br /><br /><br /><br />National Geographic says Grizzlies can reach up to 56 km/h = 34 mph, which is faster than Usain Bolt. Minor edit?