CALGARY - Two more stingrays have died at the Calgary Zoo and officials are blaming it on a shipping problem.
Forty-one of the animals died about a year ago soon after the opening of an interactive exhibit where people could pet them in the water.
Last month the zoo's president admitted that human error was to blame for those deaths.
Last week, two rays that were part of a new shipment died after arriving at the zoo.
Zoo officials say the box and bag that carried the rays were damaged in transit, so the deaths were no surprise.
The rays were given antibiotics, but it was too late.
