How big does a Pygmy ringtail possum get? Here is an overview over the average adult age:
A grown Pygmy ringtail possum (Pseudochirulus mayeri) reaches an average size of 19.8 cm (0′ 8″).
When born, they have an average size of 0 cm (0′ 0″). A full-grown exemplary reaches roughly 151 grams (0.33 lbs). A Pygmy ringtail possum has 1 babies at once. The Pygmy ringtail possum (genus: Pseudochirulus) is a member of the family Pseudocheiridae.
As a reference: Humans reach an average body size of 1.65m (5′ 5″) while carrying 62 kg (137 lbs). A human woman is pregnant for 280 days (40 weeks) and on average become 75 years old.

The pygmy ringtail possum (Pseudochirulus mayeri) is a species of marsupial in the family Pseudocheiridae. It is found in West Papua, Indonesia and Papua New Guinea in montane forest regions. They are “widespread along the Central Cordillera” and live at elevations between 1,500 and 3,600 metres (4,900 and 11,800 ft) above sea level.”Pygmy ringtails are herbivores or “arboreal folivores” that eat pollen, lichen, fungus and “epiphytic moss.” P. mayeri also eat the bark of trees, which provides them with calcium and potassium. They have “large incisor” teeth which help with “clipping forage from plants” and have “selenodont molars” that help with “shredding ingested foliage.” They have “an enlarged cecum that acts as a fermentation chamber” and allows “gut bacteria to breakdown [sic] plant tissue.” The extra retention time allows the pygmy ringtail to obtain more nutrients from the ingested forage.
Animals of the same family as a Pygmy ringtail possum
We found other animals of the Pseudocheiridae family:
- Lowland ringtail possum with a size of 22.3 cm (0′ 9″)
- D’Albertis’ ringtail possum with a size of 32.5 cm (1′ 1″)
- Painted ringtail possum with a size of 26.5 cm (0′ 11″)
- Reclusive ringtail possum with a size of 33.9 cm (1′ 2″)
- Lowland ringtail possum with a size of 22.3 cm (0′ 9″)
- Weyland ringtail possum with a size of 31 cm (1′ 1″)
- Herbert River ringtail possum with 1 babies per litter
- Cinereus ringtail possum with 2 babies per litter
- Greater glider with 1 babies per litter
- Lemur-like ringtail possum with 1 babies per litter
Animals with the same size as a Pygmy ringtail possum
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Pygmy ringtail possum:
- Malayan field rat with a size of 19 cm (0′ 8″)
- Ihering’s Atlantic spiny rat with a size of 19.7 cm (0′ 8″)
- Guyenne spiny rat with a size of 22 cm (0′ 9″)
- Maxomys baeodon with a size of 16.7 cm (0′ 7″)
- Mountain treeshrew with a size of 18.5 cm (0′ 8″)
- American pika with a size of 19 cm (0′ 8″)
- Large New Guinea spiny rat with a size of 19.5 cm (0′ 8″)
- Ontong Java flying fox with a size of 18.4 cm (0′ 8″)
- Mexican woodrat with a size of 18.4 cm (0′ 8″)
- Long-eared hedgehog with a size of 21 cm (0′ 9″)
Animals with the same litter size as a Pygmy ringtail possum
Here is a list of animals that have the same number of babies per litter (1) as a Pygmy ringtail possum:
- Eastern hare-wallaby
- Yellow-bellied brush-furred rat
- Shrew-faced squirrel
- Mountain tapir
- Southern forest bat
- Pennant’s colobus
- Malagasy giant rat
- Amazon river dolphin
- Four-striped ground squirrel
- Rock-haunting ringtail possum
Animals with the same weight as a Pygmy ringtail possum
As a comparison, here are some other animals that weight as much as the Pseudochirulus mayeri:
- Harpy fruit bat bringing 135 grams to the scale
- Painted treeshrew bringing 168 grams to the scale
- Steppe pika bringing 143 grams to the scale
- Lunda rope squirrel bringing 135 grams to the scale
- Pygmy ringtail possum bringing 152 grams to the scale
- Altiplano chinchilla mouse bringing 170 grams to the scale
- Middle East blind mole-rat bringing 180 grams to the scale
- Narrow-striped marsupial shrew bringing 124 grams to the scale
- Rajah spiny rat bringing 150 grams to the scale
- Savanna gerbil bringing 121 grams to the scale
