A horny new arrival has been welcomed at Chester Zoo.

The rare mountain horned dragons, a species native to South East Asia, broke from their shells at the end of a four-and-a-half-month-long incubation.

It is too early to determine the sexes of the new youngsters but keepers say they are all doing well.

Lead herpetology keeper, Matt Cook, said: “This is the first breeding success we have had with this species and we’re delighted with them – the youngsters are already going from strength-to-strength.

“After waiting for them to hatch for nearly five months, it was pleasing to be in the right place at the right time to be able to watch some of them pip their way out of their eggs.

“Mountain horned dragons are a really interesting species. The ‘horned’ part of their name stems from a row of spines that run down the back of their necks and across their eyelids, which should begin to develop on our new arrivals after around six months.”