Achalinus rufescens is a small reddish-brown snake. It lives in the forests of East Asia, spends almost all its time in the soil, and feeds on earthworms.
This snake differs from others by its unusual scale structure and hidden underground lifestyle. It is important for nature because it controls the population of soil invertebrates in forest ecosystems.
Searching for prey in the soil and swallowing.
Immature form that undergoes metamorphosis before adulthood.
Worker
birth time
Hot winter with almost no precipitation
Dogs, dolphins, lynx hang out for 9-25 years and party on their birthday three times a year
m
Map
will celebrate their {n} birthday
g
t
When your next jubilee falls in {name} life years
Human
days
Warm summer
How old you would be if you lived as {name}
Theoretical maximum lifespan estimated from the Dynamic Energy Budget (DEB) mathematical model. This value reflects a biological potential derived from metabolic parameters, not from direct observation — real recorded lifespans are often significantly shorter.
adult
Maturity
centipedes
About health
When your next birthday would fall if you lived as {name}
Repro interval
results
earthworms
summer warm, winter not very cold
Southeast Asia and islands, always hot and humid
Colors
Sex
Upcoming jubilees
Gremllins
mo
Uses an excavated underground tunnel or chamber for refuge or nesting.
little precipitation in winter, more in summer
Trophic type
Filters
always hot and humid, huge trees and vines
Upcoming birthdays
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
invertebrate
Age (juvenile)
Age (from birth to death)
Age (embryo)
Wanderers
Age (larva)
world of Australasia
Jubilee = every 10th birthday
small invertebrates without further specification
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
Rapidly swallows prey or food items whole without chewing.
young after fast growth
Juvenile stage following larval metamorphosis but not yet adult.
leaf litter
What do they look like?
Maturity
emergence (insects)
end of lifespan
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
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Mature, fully developed individual capable of reproduction.
gulping
Actively hunting and capturing live prey.
Pets
Indomalayan realm
Primary oral structure used to seize, manipulate, or ingest food.
Indomalayan realm
mountain
Feeding occurs primarily on land or in vegetation.
whole swallow
{name} jubilee
cm
Old-timers
Find an animal or breed...
mouth
turns
Rascals
terrestrial forest
Litter size
Map data sources: Ecosystem classification — IUCN Global Ecosystem Typology (Keith et al., 2022), indicative distribution maps Keith et al. (2020), https://doi.org/10.5281/zenodo.3546513; Large Marine Ecosystems — NOAA LME Program; Bathymetry — GEBCO Bathymetric Compilation Group (2026), GEBCO_2026 Grid, https://doi.org/10.5285/4f68d5c7-45eb-f999-e063-7086abc036fa; Climate data — Generated using Copernicus Climate Change Service information; Species occurrence data — GBIF.org, Derived dataset "all animals", https://zveriki.com/dataset/dataset.tsv; Terrestrial ecoregions — RESOLVE Ecoregions 2017 (Dinerstein et al., 2017), CC BY 4.0
How to care for them?
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
°C
Not specified
Actively searching habitats to locate food items.
Where are they found?
forest floor
38 to 65 grams, 15 – 40 centimeters
Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Tropical moist forest
Elders
Foraging among accumulated fallen leaves on the forest floor.
small invertebrates
Bro
Taxons
carnivore
if born as {name}
Forages within or on the surface of soil or substrate.
age
birth date
Head size
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
nocturnal
The basics
climbing
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
primary food sources
burrow
Potential Habitat
Very hot summer
d
In husbandry
On the go from 1.3 to 3.5 years. Forest mice, anoles, rainbow fish party on their birthday once a month
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
terrestrial
winter dry and very warm
Body size
islands and part of Australia, many unusual animals and plants
summer very hot, above +25…+30 °C
{name} birthday
soil
No results found
On the map
all life stages
Female ♀
Body color
Map data sources: Ecosystem classification — IUCN Global Ecosystem Typology (Keith et al., 2022), indicative distribution maps Keith et al. (2020), https://doi.org/10.5281/zenodo.3546513; Large Marine Ecosystems — NOAA LME Program; Bathymetry — GEBCO Bathymetric Compilation Group (2026), GEBCO_2026 Grid, https://doi.org/10.5285/4f68d5c7-45eb-f999-e063-7086abc036fa; Climate data — Generated using Copernicus Climate Change Service information; Species occurrence data — GBIF.org, Derived dataset "all animals", https://zveriki.com/dataset/dataset.tsv; Terrestrial ecoregions — RESOLVE Ecoregions 2017 (Dinerstein et al., 2017), CC BY 4.0
Potential habitat modelled from GBIF occurrence data. Map © Zveriki.com, licensed under CC BY 4.0.
birth year
Maturity
terrestrial habitat, land surface outside water
sq mm
yr
How similar?
Male ♂
until the celebration
age as {name}
How do they breed?
On the go from 3.5 to 6 years. Hedgehogs, crows, lizards treat themselves to birthday snacks 6 times a year
What if eaten?
Neither
Moving up vertical surfaces like trunks or rocks to reach food.
from birth to adulthood
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
from birth to death
early young
forests on land — tropical, temperate, boreal
Scales size
Duration
This is me
Foraging activity occurs primarily during nighttime hours.
Gamers
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
live centipedes and chilopod myriapods
terrestrial
Scales color
Asexual
swap
Southeast Asia and islands, always hot and humid
active predation
Rabbits, falcons, red-eared turtles hang out for 6-9 years and party on their birthday four times a year
Where do they take shelter?
Warm summer and lots of rain
Head color
celebrated their {n} birthday
When you would have been born if you lived as {name}
Daddies
Lifespan maximum
earthworms and soil oligochaetes
foraging
Hermaphrodite ⚥
embryo
Orange
Searching for prey in the soil and swallowing.
Length
kg
lots of rain, warm and pleasant summer
Observations
◉{N} more on tap