Some animals matter so much to their ecosystems that losing them is like removing the keystone from an arch—the entire structure begins to collapse. These keystone species shape food webs, carve out ...

University of Delaware entomologist Doug Tallamy’s research has identified “keystone” plant species that make up the foundation of many U.S. ecosystems by producing food for native insects, thus ...

New research is causing the original keystone species, the ochre sea star Pisaster ochraceus, to lose some of its supposed ecosystem-controlling powers. Photo by Jeff Rotman/Alamy Stock Photo This ...

INDIANAPOLIS — It had been the knock on the Oregon Ducks and their old conference for what felt like an eternity. They’re too offensive-minded, too gimmicky, too leaky on defense. Too soft. So as the ...

University of Delaware entomologist Doug Tallamy's research has identified “keystone” plant species that make up the foundation of many U.S. ecosystems by producing food for native insects, thus ...