Assistance dogs have been busy in training at Cotswold Wildlife Park in Oxfordshire, in order to get them used to busy and exciting environments.
They are a lifeline for people with physical disabilities, as well as those with conditions such as dementia or autism.
Mavis is one of 17 young pups from Banbury-based charity Dogs for Good.
They will go on to help adults and children with a range of disabilities, with some helping children with autism.
The training programme gets them used to all sorts of unusual sights and smells, learning to keep control when out in the real world with an owner who relies on them.
There is just one month to go before they go to live with their new owner.
- Watch Charlotte Cross' report below