Tuesday July 27, 2021, 11:51 PM A northern pool frog Credit: PA Wire/PA Images A type of frog extinct in England since the mid-1990s has been reintroduced to its former home, after animals were flown in from Sweden and first established at a secret site in Norfolk. The northern pool frog was last found at Norfolk Wildlife Trust’s Thompson Common, with its ancient pingo ponds, rare ponds created at the end of the last ice age, as its habitat. Jim Foster, conservation director of Amphibian and Reptile Conservation (ARC), said the frog became extinct in England as declining water levels made their breeding ponds unsuitable.