More Welsh wildlife adventures with Dr Rhys Jones - in this episode he takes a chimpanzee to Singleton Hospital A&E, tackles a tarantula in a graveyard in Maesteg and heads to Cardigan Bay to attempt to solve the mystery of Wales's loneliest dolphin. Four years ago, Rhys helped rescue Bili, a 30-year-old chimpanzee, from a zoo in Bulgaria, and relocate him to the Wales Ape and Monkey Sanctuary in Abercrave in the Swansea Valley. This year, when Bili was taken sick with an undiagnosed illness that left him with facial swellings and an inability to eat, Rhys accompanied him to Singleton Hospital in Swansea, where Bili became the first primate to undergo a Cat scan in a Welsh hospital. The incredible images lead to an unusual diagnoses and a treatment plan for Bili. Later in the episode, Dr Jones joins marine zoologist Sarah Perry from the Welsh Wildlife Trust, in an attempt to work out why a single common dolphin - an aquatic mammal that is usually found deep at sea in groups numbering in their hundreds - is swimming solo in the shallow waters of Newquay Bay. Is the animal ill, injured or simply lost? Rhys uses all of his skills as a scientist and animal behaviourist to come up with a solution. Show less