Rakali

Hydromys chrysogaster

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered

Insufficient data

overall probability at Grampians National Park

2 Verified records at Grampians National Park

☀️ Diurnal When it's active during daytime hours (6am–6pm)

The rakali (Hydromys chrysogaster), also known as the rabe, the "Australian otter" or water-rat, is an Australian native rodent first scientifically described in 1804. Adoption of the Ngarrindjeri name rakali is intended to foster a positive public attitude by Environment Australia. One of four described species in the genus Hydromys, it is the only one with a range extending beyond New Guinea. Having adapted to and colonised a unique niche of a semiaquatic and nocturnal lifestyle, this species lives in burrows on the banks of rivers, lakes and estuaries and feeds on aquatic insects, fish, crustaceans, mussels, snails, frogs, cane toads, bird's eggs and small water birds. Rakali have a body length of 23–37 cm (9–15 in), weigh 340–1,275 g (12–45 oz), and have a thick tail measuring around 24–35 cm (9–14 in). Females are generally smaller than males but tail lengths are normally the same. Wikipedia →

Closest Relatives at Grampians National Park

LC Endemic

Rattus lutreolus

5–10% · With luck

EN Endemic

Pseudomys shortridgei

Insufficient data

📅 Monthly Probability

📊

Fewer than 5 records of Rakali at Grampians National Park — not enough to chart months honestly.

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal

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	Kosciuszko National Park	🇦🇺 Australia	20–30%
2	Blue Mountains National Park	🇦🇺 Australia	5–10%
3	Daintree National Park	🇦🇺 Australia	5–10%
4	Lamington National Park	🇦🇺 Australia	<5%
5	Maria Island National Park	🇦🇺 Australia	Insufficient data
6	Great Otway National Park	🇦🇺 Australia	Insufficient data
7	Freycinet National Park	🇦🇺 Australia	Insufficient data
8	Booderee National Park	🇦🇺 Australia	Insufficient data
9	Grampians National Park	🇦🇺 Australia	Insufficient data
10	Cradle Mountain-Lake St Clair National Park	🇦🇺 Australia	Insufficient data
11	Kakadu National Park	🇦🇺 Australia	Insufficient data
12	Springbrook National Park	🇦🇺 Australia	Insufficient data

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