Arvicanthis (Grass Rats) — Wallace's Line

Species in this group

NT

Arvicanthis blicki

Daily sighting probability ~50% · Likely

LC

Arvicanthis niloticus

Daily sighting probability ~20% · Possible

Daily sighting probability by month

Probability-weighted average across the group's species

~30%

Jan

~40%

Feb

~30%

Mar

~40%

Apr

~30%

May

~20%

Jun

~40%

Jul

~10%

Aug

~30%

Sep

~10%

Oct

~40%

Nov

~30%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Grass Rats

Warmer areas are where this group is recorded most often. Shaded: the known ranges of its 7 species, darker where more of them overlap (Mammal Diversity Database, Marsh et al. 2022). Our parks In captivity: 1 zoo or centre

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Bale Mountains National Park	🇪🇹 Ethiopia	1 of 2	~50%
	Blick's Grass Rat			~50%
2	Serengeti National Park	🇹🇿 Tanzania	1 of 2	~20%
	African Grass Rat			~20%
3	Ngorongoro Conservation Area	🇹🇿 Tanzania	1 of 2	~20%
	African Grass Rat			~20%
4	Lake Nakuru National Park	🇰🇪 Kenya	1 of 2	~20%
	African Grass Rat			~20%
5	Masai Mara National Reserve	🇰🇪 Kenya	1 of 2	~10%
	African Grass Rat			~10%

Zoos & Centres Where Found

#	Zoo / Centre	Country
1	Zoo Pilsen	🇨🇿 Czechia	In captivity

Grass Rats

Species in this group

Blick's Grass Rat

African Grass Rat

Daily sighting probability by month

When they're spotted

Where to see Grass Rats

Parks Ranked

Zoos & Centres Where Found