Keystone species play an outsized role in the ecosystem, affecting the natural balance in ways that cannot easily be replaced.
The reemergence of a keystone species sparked joy among scientists, ecologists, and biologists. The Santa Cruz kangaroo rat — a rodent related to chipmunks — used to be plentiful in the Santa Cruz, ...
Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. The Chronicle's Sunday (Nov. 11) editorial, "Will prairie dog be next anti-ESA poster child?" was ...
Also known as the eboe, choibá, tonka bean or almendro, Dipteryx oleifera is native to Honduras, Nicaragua, Costa Rica, Panama, Colombia, and Ecuador. Its hard wood is used in construction, and it ...