The Sierra newt is a species of newt that lives in the Sierra Nevada mountains in North America. It has a dark back, bright orange belly, and skin with strong poison to protect against enemies.
The Sierra newt differs from other newts by its mountain range and very potent poison in its skin. It is important for nature because it controls the number of small animals and serves as part of the food chain.
Immature form that undergoes metamorphosis before adulthood.
Worker
Hot summer almost without rain
head
Tail size
birth time
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
shallow coastal zones of rivers and lakes
g
t
When your next jubilee falls in {name} life years
Human
Legs count
days
Warm summer
worms
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
insects
About health
cool, lots of coniferous trees, snow in winter
When your next birthday would fall if you lived as {name}
Repro interval
results
summer warm and almost no rain
summer warm, winter not very cold
Colors
live naked terrestrial slugs
Sex
Upcoming jubilees
streams
Gremllins
mo
Trophic type
Filters
Upcoming birthdays
standing fresh waters — lakes, ponds, oxbow lakes
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
high in the mountains, cold, lots of grass and shrubs
16 to 24 grams, 7 – 12 centimeters
Age (juvenile)
Age (from birth to death)
Age (embryo)
Wanderers
Jubilee = every 10th birthday
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
young after fast growth
Regeneration
Juvenile stage following larval metamorphosis but not yet adult.
Montane grasslands
What do they look like?
Maturity
emergence (insects)
Tail fin size
end of lifespan
How do they live?
fertilization / egg laying
Produces toxins capable of causing harm when delivered.
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
Find a pet...
Mature, fully developed individual capable of reproduction.
Egg count
Tail fin color
Actively hunting and capturing live prey.
Pets
slugs
Nearctic realm
Lots of rain and cool summer
{name} jubilee
cm
Temperate coniferous forest
Old-timers
Find an animal or breed...
turns
Rascals
olfaction
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
Egg color
Where are they found?
Species lacks any fixed or lasting shelter structure.
all rivers and lakes
Summer almost without rain
lots of rain, cool summer, snow in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
lakes and ponds
Taxons
carnivore
almost no rain in summer, more precipitation in winter
if born as {name}
age
birth date
no permanent shelter
freshwater coastal and creek
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
Venomous
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
primary food sources
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
lots of rain, summer not hot
Mass
cold winter, lots of coniferous trees: spruce, pine
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Gestation
vision
summer very hot, above +25…+30 °C
{name} birthday
live annelid worms
Nearctic realm
No results found
North America and Greenland, from tundra to forests
On the map
lunge
small crustaceans
Pleasant summer
Female ♀
all life stages
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
Skin color
Gills size
sq mm
yr
comfortable summer, +20…+25 °C
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
What do they eat?
Where do they live?
mountains
early young
Freshwater
Duration
live insects
This is me
Warm summer with almost no rain
freshwater
Gamers
How are they built?
Cool summer and lots of rain
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
Taiga
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
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?
celebrated their {n} birthday
When you would have been born if you lived as {name}
Daddies
Gills count
small crabs, amphipods and other crustaceans
Lifespan maximum
Hermaphrodite ⚥
Mandarin
North America and Greenland, from tundra to forests
Primarily detects and locates food using eyesight.
embryo
Denotes a mountainous habitat preference.
Length
kg
Rapid forward strike to seize prey.
Observations
◉{N} more on tap