The Canadian otter is a semi-aquatic mammal from the weasel family. It swims, dives, and hunts excellently in freshwater bodies of North America.
The Canadian otter differs from the sea otter by living in fresh water and having a longer tail. It is important for nature because it regulates fish populations and cleans water bodies of sick animals.
homogamy, reproduction always with fertilization, no alternation of generations
Whiskers count
Worker
Tail size
birth time
Submerges underwater to reach prey or food at depth.
breeding
live adult frogs and toads
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
summer mild, +15…+20 °C
lots of rain, warm summer, snow in winter
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
Nightstand
crabs
About health
milk
cool, lots of coniferous trees, snow in winter
When your next birthday would fall if you lived as {name}
nest built on land near a river, lake, pond or swamp
Repro interval
results
protection from predators
summer warm, winter not very cold
Colors
Cool summer
Sex
Upcoming jubilees
Gremllins
diving
mo
live fish
Trophic type
Filters
in fresh water
den
Upcoming birthdays
standing fresh waters — lakes, ponds, oxbow lakes
Winter with snow
eggs, roe or offspring develop in a nest built on the ground or close to it
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
Height
nest on the ground
rains almost always, very humid
young are born live on land, not hatched from eggs or roe
Age (juvenile)
Age (from birth to death)
Age (embryo)
Feet color
Wanderers
Food items are collected from exposed outer surfaces of substrates.
Jubilee = every 10th birthday
Warm summer and frequent rains
Feet size
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
nest located directly on the ground surface on land, only the mother provides parental care for the offspring
in a terrestrial nest
Whiskers size
live birth
summer warm, rains frequent
live amphibians, frogs, salamanders
What do they look like?
Maturity
emergence (insects)
amphibians
end of lifespan
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
small mammals
metamorphosis / end of larval stage
fish
end of acceleration
Share
swampy freshwater biotopes — peat bogs, marshes, river mangroves
Find a pet...
Mature, fully developed individual capable of reproduction.
Actively hunting and capturing live prey.
Pets
Nearctic realm
Lots of rain and cool summer
{name} jubilee
cm
Temperate coniferous forest
Old-timers
Find an animal or breed...
turns
Rascals
Tail color
Flooded grasslands
drink mother's milk in childhood
Litter size
live crabs, shrimps, lobsters
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
Fur temp
hunting in water
Where are they found?
all rivers and lakes
Whiskers color
Summer almost without rain
lots of rain, cool summer, snow in winter
Locomotion through water employed while searching for or capturing prey.
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
lakes and ponds
normal sexual
freshwater marsh and wetlands
Taxons
carnivore
almost no rain in summer, more precipitation in winter
rivers and streams
if born as {name}
age
birth date
small mammals — mice, shrews, bats
swimming
rest
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
hibernation
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
surface
primary food sources
teeth
after transformation until death
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
Feeding occurs in water bodies such as rivers, lakes, or oceans.
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
Body size
aquatic
small mammals
land
summer very hot, above +25…+30 °C
{name} birthday
Nearctic realm
grass
No results found
North America and Greenland, from tundra to forests
On the map
lunge
Pleasant summer
Female ♀
all life stages
Body color
nest located directly on the ground surface on land
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
Shelter used specifically for reproduction or nesting.
Maturity
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
Male ♂
until the celebration
baby / chick
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
from birth to adulthood
Young offspring still dependent on parental care.
caring mother
What do they eat?
Where do they live?
moss
Immature individual that has not yet reached reproductive maturity.
Lots of rain and warm summer
much snow in winter, cold
Hard dental structures used to bite, tear, or scrape food.
water often floods the land, lots of grass
Freshwater
Temperate mixed forest
6 to 47 kilograms, 0.9 – 2.5 meters
Duration
frogs
fish
This is me
freshwater
Always very wet
Gamers
Feet count
How are they built?
frogs and toads
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
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?
Warm summer and lots of rain
inhabit and develop on land, outside water bodies
celebrated their {n} birthday
newts
When you would have been born if you lived as {name}
flowing fresh waters — rivers, streams, mountain torrents
Daddies
Lifespan maximum
Hermaphrodite ⚥
North America and Greenland, from tundra to forests
embryo
summer warm, many oaks, birches, maples
Length
kg
lots of rain, warm and pleasant summer
Rapid forward strike to seize prey.
Observations
◉{N} more on tap