As a rule, the fork-marked lemur lives in a monogamous relationship with their mate. Once bonded, the lemurs live together in a hole in a tree and share their lives there. They reproduce only with one mate at a time. Both males and females participate in the raising of offspring, although the females tend to play a larger role in the lives of young ones than males do. This is a similar trait found in many primates, including other lemurs.
Many are dying because of deforestation in their homelands. Lemurs are tree-dwelling creatures, and forestry has become a popular industry that is taking the lives of these animals.
The average life expectancy for the fork-marked lemur is around twelve years. One infant is born to a lemur pair each season, and infants are expected to live with their parents until able to fend for themselves. Actual life span has decreased greatly since many lemurs have no trees to live in while in the wild, but lemurs who are under the care of humans tend to live around twelve years.
These lemurs are most commonly known for their distinct markings on the face. The fork-marked lemur is named for its two black stripes that run from the eyes to the tip of the snout, making the animal stand out among its other lemur counterparts. These lemurs also possess large, bushy tails that can be between 29 and 37 centimeters long.
The Fork-marked dwarf lemur, fork-marked lemur, fork-marked mouse-lemur is listed as Near Threatened (LR/nt), is close to qualifying for or is likely to qualify for a threatened category in the near future, on the IUCN Red List of Threatened Species