The Calgary Zoos beloved giant pandas face an uncertain future.

Plans to return the pandas Er Shun and Da Mao to China announced in May have not materialized as the zoo has not secured the proper international permits to send the pandas back to their homeland.

And zoo officials warn they are running out of bamboo and time.

The zoo initially announced plans to return the pandas in May after international travel and subsequently the pandas main source of food dried up in the wake of the COVID-19 pandemic .