The small birds rejoice in the green leaves ... When the lingering moments are numbered by Care? No birds sweetly singing, nor flowers gayly springing, Can soothe the sad bosom of joyless Despair.

Instead, they belong to the Alston’s singing mouse, Scotinomys teguina, a tiny creature with a surprising skill. These small rodents ... akin to bird songs. Each call serves a purpose, from ...