Vultures have such bulletproof digestive systems they can even eat anthrax. But their powerful stomachs also serve an important environmental function.
The invasive Hessian fly spurred suspicions of biological warfare, threatened the new nation’s economy and inspired the nation’s first citizen science project.
"Avimancy" is a new project being led by a birding couple who are linking their ornithological fascination to their art, exploring film, music, dance and more.