Bolstered, the six little mice lead their army up–up–up the trunk of the poor, ravaged oak they were so desperate to save.

In the mountains north of Quito, Ecuador, a small new species is followed by a “very long tail,” researchers said. Florian ...

Protection of the owl’s preferred old-growth forest habitat is essential for its recovery, as is the protection of streams that sustain New Mexico meadow jumping mice. Today’s notice lists multiple ...