Panda cubs turn a month old at the Toronto Zoo

The Toronto Zoo's twin panda cubs celebrated a month of being alive today by sleeping and being really cute.

The larger of the two cubs now weighs more than one kilogram, while the smaller one is about 750 grams.

• Toronto Zoo announces birth of twin giant pandas

• Toronto zoo's 2 giant panda cubs growing fast

Zoo staff say both cubs are healthy and continue to grow. Giant panda mom Er Shun is also doing well, the zoo says she's a great mother. 

Her twin cubs were the first-ever giant pandas born in Canada. For the next several months, the cubs will remain in the maternity area of the giant panda house, which is not open to the public. 

The pandas, which are on loan to the zoo from China, will be at the Toronto Zoo until 2018, when they'll move to the Calgary Zoo for five years.

War of adorableness on at the Zoo

All of the cute cubs at the Toronto Zoo might break the internet, they just keep one-upping each other. 

• Toronto Zoo's white lion cubs growing up fast
• 4 rare white lion cubs born at Toronto Zoo

Not to be outdone by their panda cub counterparts, the Toronto Zoo's white lion cubs are also showing off their adorableness. 

The four white lion cubs, were born to mother Makali and father Fintan,on Sept. 26 at the Toronto Zoo.