The zoo says international permit approvals are now underway and it's cautiously optimistic it will be able to confirm a flight to China for the pandas soon.

Coffee chains in the country have been keen to create more sustainable packaging as well. Tim Hortons recently introduced a recyclable lid, while Starbucks says it is working to eliminate plastic straws globally by 2020.

Bamboo can spread rapidly and can do some serious damage to concrete and infrastructure.