The Park hosts the Alaotra reed lemur (Hapalemus alaotrensis), one of the most threatened lemur species and classified as "critically endangered" in the IUCN Red List. These lemurs are included in the European ex situ conservation programme EEP (EAZA Ex-situ Programme) and over the years the goup bred succesfully several times. Alaotra reed lemurs are housed in the Madagascar area with other lemur species, where in 2010 a bran new exhibit was built with natural barriers and several trees, allowing the animals to show species-specific natural behaviours.
 
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