Microcebus lehilahytsara Roos & Kappeler, 2005

Size Characteristics

Mouse lemurs are among the smallest primates, and Goodman's mouse lemur (Microcebus lehilahytsara) is no exception. While it is not the smallest primate overall, its head-body length is comparable to that of M. berthae, the smallest known primate.

Weight and Sexual Dimorphism

On average, individuals of this species weigh between 45 and 48 grams (1.6 to 1.7 oz), and males are slightly larger than females.

Coloration

Goodman's mouse lemur is primarily maroon, with a white underbelly and an orange tint on its back.

Torpor Patterns

This species undergoes both daily torpor and winter torpor. Their tails can store fat, which helps them prepare for winter torpor.

Winter Torpor Sexual Differences

Almost all females of this species enter torpor every winter, but not all males enter annual winter torpor. Males that do enter winter torpor exit it an average of 20 days earlier than females.

Torpor Timing and Mating

This timing is thought to help males prepare for mating, which occurs almost immediately after females end their winter torpor.

Male Torpor Variation

Males that skip winter torpor are typically older individuals that can compete more successfully against younger males for mates; even these older males still usually undergo daily torpor.