Tiger cubs important to save species
Chester Zoo welcomed some Sumatran tiger cubs earlier this year - and Newsround couldn't resist paying them a visit.
But apart from being super cute, the tiger cubs are important to make sure the species survives in the future.
Sumatran tigers are one of the most endangered species of big cat, with fewer than 400 left in the wild.
They can only be found on the Indonesian island of Sumatra, but the jungle where they live is increasingly being destroyed and they are at risk of poaching.
Ayshah's got more on this story.