Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Most commercial airplanes cruise at 30,000 to 40,000 ...

Multiple Types of Vultures Live in the U.S. Three types of vultures live in the United States—the turkey vulture, black vulture and California condor (which is a vulture bird, despite not having that ...

Introduction : the spokesbird -- Vulture culture -- The private lives of public birds -- Rockshelter -- Wings and prayers -- Rebirth -- Hill of the sacred eagles -- On the move -- Virginia is for ...