Lissotriton maltzani is a small newt that lives only in central Portugal. It spends part of its life in water and part on land in forests near streams.
Lissotriton maltzani differs from other newts by its small size and limited range in Portugal. It is important for nature as a predator of small invertebrates and as an indicator of water purity in forest streams.
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
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
Sex
Upcoming jubilees
streams
Gremllins
mo
Trophic type
Filters
Palearctic realm
Mediterranean forest
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
insect larvae and caterpillars
Age (from birth to death)
woodland
most of Europe and Asia, various forests, steppes and tundra
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.
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
Find a pet...
Mature, fully developed individual capable of reproduction.
Egg count
Actively hunting and capturing live prey.
Pets
Primary oral structure used to seize, manipulate, or ingest food.
lateral line
{name} jubilee
cm
Old-timers
Find an animal or breed...
mouth
turns
Rascals
Tail color
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
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
External gills count
if born as {name}
age
birth date
no permanent shelter
Palearctic realm
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
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
teeth
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
vision
summer very hot, above +25…+30 °C
{name} birthday
live annelid worms
No results found
Eyes color
On the map
lunge
small crustaceans
all life stages
Female ♀
dry and hot summer, warm and rainy winter
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
sq mm
yr
External gills size
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?
insect larvae
Where do they live?
early young
Hard dental structures used to bite, tear, or scrape food.
Freshwater
Duration
live insects
This is me
Warm summer with almost no rain
most of Europe and Asia, various forests, steppes and tundra
freshwater
Gamers
How are they built?
External gills color
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
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?
Sensory system detecting water movements to locate prey.
celebrated their {n} birthday
When you would have been born if you lived as {name}
Daddies
small crabs, amphipods and other crustaceans
Lifespan maximum
Hermaphrodite ⚥
Grape
8 to 11 grams, 1.5 – 8 centimeters
Primarily detects and locates food using eyesight.
embryo
Length
kg
Rapid forward strike to seize prey.
Observations
◉{N} more on tap