The ladder snake is a medium-sized non-venomous snake from the Colubridae family. It lives in southwestern Europe and is distinguished by a special pattern on its back consisting of two rows of dark spots.
The ladder snake helps maintain balance in nature by regulating the population of lizards and rodents. It is harmless to humans and is an important part of the ecosystems of southern Europe.
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Worker
Elders
Hot summer almost without rain
Tail size
Bro
birth time
Taxons
carnivore
almost no rain in summer, more precipitation in winter
if born as {name}
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
age
t
When your next jubilee falls in {name} life years
Human
birth date
small mammals — mice, shrews, bats
Palearctic realm
Close
Egg shell color
was
days
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Warm summer
The basics
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.
My weight?
summer is hot and almost no rain falls
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
adult
Maturity
primary food sources
active search and strangulation of prey
burrow
Melon
Potential Habitat
About health
Very hot summer
When your next birthday would fall if you lived as {name}
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
Repro interval
results
summer warm and almost no rain
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
summer warm, winter not very cold
Body size
small mammals
Colors
Sex
summer very hot, above +25…+30 °C
{name} birthday
Upcoming jubilees
Gremllins
mo
Uses an excavated underground tunnel or chamber for refuge or nesting.
No results found
Trophic type
Filters
Eyes color
On the map
all life stages
Female ♀
dry and hot summer, warm and rainy winter
Palearctic realm
Mediterranean forest
Body color
Upcoming birthdays
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.
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
birth year
Maturity
bird eggs
terrestrial habitat, land surface outside water
sq mm
yr
most of Europe and Asia, various forests, steppes and tundra
Wanderers
constriction
How similar?
Jubilee = every 10th birthday
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
Earliest developmental stage inside an egg or womb.
Business sausages
from birth to adulthood
Lifespan average
What do they eat?
Egg shell count
Where do they live?
Rapidly swallows prey or food items whole without chewing.
Immature individual that has not yet reached reproductive maturity.
forests on land — tropical, temperate, boreal
What do they look like?
Maturity
water often floods the land, lots of grass
emergence (insects)
end of lifespan
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
Temperate mixed forest
end of acceleration
Share
Duration
Find a pet...
Mature, fully developed individual capable of reproduction.
Wraps body around prey to immobilise or suffocate before swallowing.
gulping
This is me
Warm summer with almost no rain
rocky
most of Europe and Asia, various forests, steppes and tundra
Actively hunting and capturing live prey.
Gamers
Pets
How are they built?
live lizards
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
terrestrial shrubland
wk
My size?
chicks and fledglings in nests
terrestrial
whole swallow
{name} jubilee
Asexual
swap
terrestrial shrub habitats — maquis, chaparral, bush
cm
hilly
Old-timers
Find an animal or breed...
active predation
lizards
turns
Rabbits, falcons, red-eared turtles hang out for 6-9 years and party on their birthday four times a year
Rascals
Where do they take shelter?
terrestrial forest
Flooded grasslands
Head color
celebrated their {n} birthday
chicks and nestlings
When you would have been born if you lived as {name}
Litter size
Daddies
Lifespan maximum
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
foraging
°C
Not specified
Hermaphrodite ⚥
Actively searching habitats to locate food items.
Ladder pattern color
Where are they found?
embryo
from 0.8 to 1.2 kilograms, 0.6 – 1.2 meters
summer warm, many oaks, birches, maples
Length
kg
Summer almost without rain
Observations
◉{N} more on tap