In northwestern India, annual monsoon rains fill lake Kotla Dahar, which then eventually dries as it receives virtually no precipitation for about half...
What is the recipe for making an iceberg? Scientists know the basics from watching polar-ice sheets. Huge chunks calve, slide off, and float away as...
Permian rock layers contain several of the fossil record’s greatest evolutionary enigmas. These rocks are found directly above Carboniferous strata,...