Grey Mouse-lemur
Grey Mouse-lemurGrey Mouse-lemurGrey Mouse-lemurGrey Mouse-lemur

Grey Mouse-lemur

Microcebus murinus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
40–50% · Likely
overall probability at Ankarafantsika National Park
13 Verified records at Ankarafantsika National Park
February Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

The gray mouse lemur (Microcebus murinus), grey mouse lemur or lesser mouse lemur is a small lemur, a type of strepsirrhine primate, found only on the island of Madagascar. Weighing 58 to 67 grams (2.0 to 2.4 oz), it is the largest of the mouse lemurs (genus Microcebus), a group that includes the smallest primates in the world. The species is named for its mouse-like size and coloration and is known locally (in Malagasy) as tsidy, koitsiky, titilivaha, pondiky, and vakiandry. The gray mouse lemur and all other mouse lemurs are considered cryptic species, as they are nearly indistinguishable from each other by appearance. For this reason, the gray mouse lemur was considered the only mouse lemur species for decades until more recent studies began to distinguish between the species. Like all mouse lemurs, this species is nocturnal and arboreal. Wikipedia →

40–50% of wildlife watchers report a Grey Mouse-lemur sighting in Ankarafantsika National Park, based on 13 days of visitor records from GBIF citizen-science data.

Closest Relatives at Ankarafantsika National Park

Golden-brown Mouse Lemur
VU Endemic

Golden-brown Mouse Lemur

🌅 Crepuscular Mammal

Microcebus ravelobensis

30–40% · Possible
Western Fat-tailed Dwarf Lemur
VU Endemic

Western Fat-tailed Dwarf Lemur

🌅 Crepuscular Mammal

Cheirogaleus medius

30–40% · Possible
Coquerel's Sifaka
CR Endemic

Coquerel's Sifaka

☀️ Diurnal Mammal

Propithecus coquereli

80–90% · Very likely
Milne-Edwards' Sportive Lemur
EN Endemic

Milne-Edwards' Sportive Lemur

🌅 Crepuscular Mammal

Lepilemur edwardsi

60–70% · Likely
Lorenz Von Liburnau’s Woolly Lemur
VU Endemic

Lorenz Von Liburnau’s Woolly Lemur

🌅 Crepuscular Mammal

Avahi occidentalis

60–70% · Likely
Common Brown Lemur
VU

Common Brown Lemur

☀️ Diurnal Mammal

Eulemur fulvus

50–60% · Likely
Mongoose Lemur
CR

Mongoose Lemur

☀️ Diurnal Mammal

Eulemur mongoz

40–50% · Likely

📅 Monthly Probability

20–30
Jan
70–80
Feb
30–40
Mar
60–70
Apr
60–70
May
20–30
Jun
40–50
Jul
50–60
Aug
60–70
Sep
50–60
Oct
10–20
Nov
10–20
Dec

🌅 When They're Spotted

Most active at dawn and dusk · across all parks (global)

🌅Crepuscular
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Ankarafantsika National Park 🇲🇬 Madagascar
40–50%
2 Berenty Reserve 🇲🇬 Madagascar
Insufficient data

Quick answers

What are the chances of seeing a Grey Mouse-lemur in Ankarafantsika National Park?

About 45% of wildlife watchers report a Grey Mouse-lemur sighting in Ankarafantsika National Park, based on 13 days of visitor records from GBIF citizen-science data.

When is the best time to see Grey Mouse-lemur in Ankarafantsika National Park?

February has the highest sighting rate for Grey Mouse-lemur in Ankarafantsika National Park in our monthly data.

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