Researchers at the National Institute on Aging say their study suggests a link between depression and cancer in elderly people. December 15, 1998. Web posted at: 8:15 p.m. EST (0115 GMT) WASHINGTON (CNN) -- A new study by researchers at the National Institute on Aging suggests a link between chronic depression and cancer among older patients. When present for at least six years, depression was associated with a generally increased risk of cancer, the researchers wrote in the Journal of the National Cancer Institute.
Rate this answer: A wolf's bite packs a punch of 1500 pounds of pressure per square inch which is meant to snap an antelope or elk leg in half. A domestic dog even an American Pit Bull terrier can't even measure up to half of that at about 250 pounds of pressure per square inch.
Predator and Prey. What the wolf lacks in size, power and weapons it makes up for with collaboration and intelligence. Smaller and less powerful than mountain lions, for example, wolves work together to take down prey much larger than an individual wolf; prey that may otherwise elude them. While individual wolves have been able to subdue large prey animals, their advantage is in collaborating with their pack. Wolves are opportunists. They test their prey, sensing any weakness or vulnerability through visual cues and even through hearing and scent. Contrary to ambush predators that rely on the element of surprise and a short and intense burst of energy to secure their prey, wolves are endurance or coursing predators.