They've been roaming Dartmoor for hundreds of years, but the future of the Dartmoor pony is in crisis. With fewer sales than ever before, the market is struggling and many foals have to be put down. But a Devon charity is campaigning to reduce the number of unwanted ponies - by introducing a contraceptive.
Charlotte Faulkner's been looking after ponies here on Dartmoor for more than 30 years. Over the decades she's seen the market for these animals dwindle - ponies can be picked up at auction for as little as £10.
Trials of a contraceptive injection have been a success but Charlotte needs land to monitor the ponies. At the moment overbreeding means many of the foals have to be shot.
The meat's used to feed tigers and lions at Dartmoor Zoo.
Charlotte's waiting for permission from the Forestry Commission to lease the land so these iconic ponies can continue to roam for many more centuries to come.
You can watch the full report with Francesca Carpenter below: