Jeffrey Holden spends his summers knee-deep in dead moose.  In his new book “Dead Moose on Isle Royale: Off Trail with the ...

A fossil from the blustery plains of Patagonia is revising your book on one of the most elusive bands of hunting dinosaurs.

It’s long been known that snowshoe hare numbers in North American forests rise and fall dramatically in a predictable 10-year cycle. A year or two later, Canada lynx populations follow the same ...