Related Video and AudioComing upPlay audio Leeds Rhinos v London Broncos from BBC Radio 5 live sports extraLeeds Rhinos v London BroncosBBC Radio 5 live sports extraComing upPlay audio Leeds Rhinos v London Broncos from BBC Radio LeedsLeeds Rhinos v London BroncosComing upPlay audio Barrow Raiders v Rochdale Hornets from BBC Radio CumbriaBarrow Raiders v…

Ponds that vanish and reappear, animals that go dormant and return to life—vernal pools feel a bit like spring magic, but they’re 100 percent real. These ephemeral habitats, found along the U.S. West Coast and throughout the Northeast and Midwest, form in natural depressions that have suitable soil for holding water. (See our beautiful photos…