Last fall, the 90th anniversary migration season at Hawk Mountain Sanctuary set another record for the bald eagle with 668 of ...

For the briefest moment earlier this year, the Eurasian lynx — extinct in the U.K. for thousands of years — returned to the ...

The butterfly appears to be a hybrid between two known tiger swallowtail species — P. glaucus and P. canadensis — but because ...

Olney, Illinois, has taken steps to protect an iconic mammal from domesticated felines, setting a possible model for other ...