The Polar Bear Swims Alone

“Bears do not mate for life, but they are fairly social, according to Dr. David Shepherdson, a scientist at the Oregon Zoo in Portland who has studied bear behavior extensively. ‘For any animal that forms a close bond with another one, there would be some sense of loss.’”
 — How will Central Park Zoo polar bear Gus respond to the absence of his good friend Ida, who was euthanized last week?