More than 40 years after the Mount St. Helens eruption buried a Washington river valley under volcanic sediment, 58 relocated beavers have helped restore the damaged landscape.

Their dams and wetlands brought back native plants, fish and wildlife. However, conservationists fear a planned government project to raise a sediment retention structure could undo years of natural restoration.

This story was reported by The Times of India. Read the full coverage at The Times of India.