A mastodon named Fred, also known as the Buesching mastodon, is a distant relative of the modern elephant. Fred's skeleton is preserved in the Indiana State Museum.
The testing system set up by the CDC actually deters doctors from ordering a monkeypox test, and many physicians aren't familiar with the disease, resulting in too few tests and little tracking.
NPR's Mary Louise Kelly talks with Arlene Blum, executive director of the Green Science Policy Institute, about the EPA's warning about PFAS and how to navigate a world rife with "forever chemicals."
In his new book, An Immense World, science writer Ed Yong explores the diversity of perception in the animal world — including echolocation, magnetic fields and ultraviolet vision.
NPR talks to Claire Hannan, who has helped navigate vaccine rollouts in all 50 states, about some of the challenges involved in quickly getting shots out to millions of young kids.