Deep in South American rainforests, a mysterious amphibian hides, baffling scientists with its unusual life. Its secret methods of survival remain a subject of fascination.

Cheers erupted from the onlookers who had gathered to see the tuna, a species rarely seen in waters around Sitka.

Lough Neagh, the UK’s largest lake, faces severe algae blooms due to pollution and climate change. This threatens wildlife, ...