It says the cubs and their mother, Er Shun, ``all appear to be doing well,'' but notes the next few days and weeks are critical and all three will be monitored around the clock.
The zoo says it's the first time giant pandas have been born in Canada.
The pregnancy was announced in late September.
Staff have said the cubs, if they survive, will live at the zoo for about two years and will likely return to China once they are weaned from Er Shun.
(The Canadian Press)<