This is the biggest lizard in the UK

Thirty-one rare sand lizards have been returned to North Wales in a bid to boost dwindling numbers.

The lizards, thought to have been extinct as recently as 60 years ago, were bred at Chester Zoo.

Though quite cute and something of a success story, it says something that they are the UK's largest lizard species.

In contrast, here's the world's largest lizard, the Komodo Dragon, which lives on several Indonesian islands.

Disclaimer: Sand lizards can grow up to 20cm long. So either the sand lizard in the picture above is small for his species or he is being held by a giant.

(Pictures: Getty/PA)