Weekly Quiz: Poor Peacekeeping, Suspicious Science, and the New Divorcees

Mahone, a two-year-old, black, fluffy Newfoundland dog from Prince Edward Island, doesn’t know that he and other canine blood donors have saved the lives of fellow pooches that have needed surgery, or have been poisoned. Mahone just does it for the treats.During separate appointments every three months, Mahone and 20 other dogs visit the clinic at the University of Prince Edward Island’s Atlantic Veterinary College in Charlottetown. They are lifted onto a table and laid on their side, before a veterinarian inserts a needle into their jugular vein, collecting about 450 millilitres of...