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As climate change, prolonged droughts and rapid population growth place increasing pressure on global freshwater supplies, scientists are searching for cleaner and more affordable ways to produce drinking water. Conventional desalination has helped many water-scarce nations meet demand, but the process remains heavily dependent on electricity, costly infrastructure and high operating expenses.

Across the animal world, some species decline rapidly after reaching adulthood while others stay active and healthy for years or even decades, and understanding this difference has become one of the central questions in ageing research today. Scientists at Yale School of Medicine have now turned their attention to an unlikely candidate for answers, a small wild rodent called the golden spiny mouse.

An invasive snake that likely arrived on Guam hidden inside military cargo after the Second World War went on to transform the island's ecosystem in ways scientists are still trying to understand. The brown tree snake, native to parts of Australia, Papua New Guinea and nearby islands, found an environment unlike any it had encountered before.