Grizzly bears walk the landscape like most people, favoring flat paths on slopes and gentle movements on sprints, according to one A remarkable new study of the Grizzlies And how does their outer life compare to ours.
The study, which included wild and captive bears, a special treadmill, Apple slices and GPS tracker, enhances our understanding of how a natural drive to conserve the behavior of energy-sized animals, including ours, and for health and weight management How can there be implication. The findings also help explain why, on the great road, the paths of bears and people often bite each other, providing useful reminders about the plan of the forest and the safety of all.
Biologists and other scientists have become Increasing interest in recent years How we and other creatures make their way through their surroundings. And while some preliminary answers have begun to emerge as to why we walk and navigate as we do, the conclusions are not particularly flattering.
Accumulated research suggests that we humans, as a species, are apt to be physically lazy with a hard-wired inclination to avoid activity. In one 2018 neurological study is telling, For example, brain scans indicated that volunteers were more attracted to images of people in chairs and hammocks than people in motion.
Apparently this innate preference did not become a time for us, long ago, when hunting and gathering demanded hard effort and plenty of calories and did not rest under a tree. Inactivity is now more problematic, with food everywhere.
But this prank we share with other species for physical spontaneity and whether these predispositions affect how we and they affect the world remains unclear.
So, grizzlies, especially those living Washington State University Bear CenterThe country has a primary grizzly conservation and research center. University biologists attached to the center study how animals live, eat and interact with humans.
Now, for the new study, which was recently published in the Journal of Experimental Biology, they decided to find out exactly how energy gripplies spend when they move in different ways and that they and comparable numbers are real. Life can affect behavior, not only of bears but of us and other animals.
To begin with, he built a strong enclosure around the treadmill originally built for horses. With modifications, it can grow up to 20 percent while handling the size and weight of the grizzly. In front of the enclosure, scientists added a feeding box with a built-in rubber glove.
They then taught the center’s nine male and female females – most of them residing at the center since birth and sports names such as John, Peeka and Frank – climbing and walking on the treadmill, as a reward for hot dogs and Accepting apple slices. .
“The Grizzlies are very food driven,” says Anthony Carnahan, a doctoral candidate at Washington State University who led the new study.
By measuring changes in wind structure in the enclosure, the researchers tracked each bear’s energy expenditure at different speeds as they moved up and down. (Bears never ran on the treadmill, due to concerns for their safety.) Using this data, researchers determined that the most efficient speed for the bear, physically – was the one at which they used the least oxygen – About 2.6 mph.
Finally, scientists gathered available information about wild bear movements, using GPS data from grizzlies in Yellowstone National Park, as well as data from previous studies of people and other animals wandering from natural landscapes and comparable numbers. Compared.
Compared to the data, scientists found that wild grizzlies, like us, are born lazy. Researchers expected wild bears to move at their most efficient speeds whenever possible, Mr. Carnahan says. But in fact, his average speed traveled through Yellowstone was a poky and physically inefficient 1.4 mph.
Even when extra time was required, he chose almost the minimum route for commuting anywhere. “They did a lot of side-shaking,” Mr. Carnahan says.
Interestingly, these speeds and routes closely resembled those when choosing routes from wooded areas, the researchers noted.
Taken as a whole, the findings suggest that the innate urge to avoid exertion plays a large role in how all creatures, great and small, usually behave and navigate as we might imagine.
However, the study does not state that like other bears, crocodiles can also move with a sudden and rapid pace when they make a decision, Mr. Carnahan explains. He said, “I saw a bear running in a mountainous meadow in six or seven minutes, when I got up all afternoon.”
Similarly, the results do not tell us that we humans are always motivated to grow slowly to stick to the flats, but only that mental as well as physical effort and goal setting may be required. So that the easiest routes are not missed.
Finally, the study is a breeding reminder that we share outside with large apex predators who can naturally choose the same path as us. You can find useful information about the remaining safe country in the country. Interstate Bear Committee website.