Samantha Pierce of Cleveland has a 7-year-old daughter, Camryn. In 2009, Pierce gave premature birth to twins. The babies did not survive. Scientists say black women lead more stressful lives, which makes them more likely to give birth prematurely and puts their babies at risk of dying.
Dustin Franz for NPR
Hurricane María's 150-mph winds destroyed the tropical rainforest's canopy and stripped trees bare. Scientists believe as many as one-fifth of the forest's trees may eventually die from the storm's effects.