Devon Wildlife Trust said 15 martens were reintroduced on Dartmoor in 2024 following a 100-year absence.

It said camera trap footage, at a secret site, revealed the first glimpses of the kits and conservationists behind the project said they were "ecstatic" to see the animals had successfully bred.

"This is a historic moment for the return of a native animal and for the future of the South West's woodlands," said Tracey Hamston who leads the Two Moors pine marten project.