Alston's brown mouse

This species produces vocalizations in both the sonic and ultrasonic range that are thought to be an important component of its communication behavior.

This rodent prefers wet habitats with subtropical climates, and is commonly observed in grassy clearings and rocky areas at the forest edge.

[5] When singing, the mouse rears on its hind legs and extends its neck, facing upward while producing a stereotypical call of up to 10 seconds.

The exact function of the singing behavior is not yet well understood, but it is believed to play an important role in social communication.

For this reason, a growing interest has emerged in studying S. teguina in laboratory settings as a potential model for animal language in mammalian species.

Stereotypical calls may provide an adaptive mechanism for the localization of conspecifics, and vocalizations in the ultrasonic range are typically inaudible to most predators.

Male Alston's singing mouse ( Scotinomys teguina ) singing to female in estrus