The Canadian beaver is a large semi-aquatic rodent from North America. It builds dams from branches and clay to create deep reservoirs and homes for living.
The Canadian beaver differs from the European beaver by a larger head and skull shape. It greatly alters the surrounding nature with its dams, creating new habitats for fish, birds, and other animals.
meadows, prairies, forb glades on land
homogamy, reproduction always with fertilization, no alternation of generations
Immature form that undergoes metamorphosis before adulthood.
Worker
Tail size
birth time
wood, tree bark
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
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
Carry-on luggage
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, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
Uses jaws or beak to break hard-shelled or tough food items.
Uses an excavated underground tunnel or chamber for refuge or nesting.
Trophic type
Filters
leaves
Upcoming birthdays
standing fresh waters — lakes, ponds, oxbow lakes
Breeding structure built or used for laying eggs and raising offspring.
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
bark
aquatic plants
4.8 to 6 kilograms, 0.8 – 1.4 meters
Age (juvenile)
Age (from birth to death)
Age (embryo)
Wanderers
algae
Jubilee = every 10th birthday
Warm summer and frequent rains
Earliest developmental stage inside an egg or womb.
Business sausages
roots
Lifespan average
in a terrestrial nest
leaves
Incisors color
live birth
summer warm, rains frequent
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
swampy freshwater biotopes — peat bogs, marshes, river mangroves
Find a pet...
Mature, fully developed individual capable of reproduction.
Freshwater
Pets
all rivers and lakes
Nearctic realm
Lots of rain and cool summer
Feeding occurs primarily on land or in vegetation.
{name} jubilee
both parents
cm
Temperate coniferous forest
Old-timers
Find an animal or breed...
turns
Rascals
terrestrial forest
terrestrial grassland and steppe
terrestrial herbaceous
Tail color
Flooded grasslands
Forages on tree limbs or woody stems within vegetation.
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
grazing
wood
°C
Not specified
Where are they found?
all rivers and lakes
herbivore
Webbed hind feet color
lots of rain, cool summer, snow in winter
Feeds by cropping or nibbling low-growing vegetation or algae.
Incisors size
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
if born as {name}
Foraging takes place among trees and woody vegetation.
age
birth date
swimming
gnaws plants and bark with sharp front teeth
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
bark and bast of trees and shrubs
climbing
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
Insects
primary food sources
teeth
burrow
bark
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.
nest located directly on the ground surface on land, both parents provide care
Mass
young shoots and leaves of plants
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
terrestrial
Plants
Gestation
aquatic
land
summer very hot, above +25…+30 °C
{name} birthday
Nearctic realm
No results found
North America and Greenland, from tundra to forests
branches
On the map
Pleasant summer
all life stages
Female ♀
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
tree bark
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
Moving up vertical surfaces like trunks or rocks to reach food.
from birth to adulthood
Young offspring still dependent on parental care.
nest
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Lots of rain and warm summer
from birth to death
much snow in winter, cold
Webbed hind feet count
early young
Hard dental structures used to bite, tear, or scrape food.
forests on land — tropical, temperate, boreal
water often floods the land, lots of grass
branch
Freshwater
Temperate mixed forest
Duration
This is me
freshwater
Always very wet
Gamers
aquatic plants and algae
crushing
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Taiga
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
roots and plant tubers
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
open grassy spaces — steppes, savannas, prairies
When you would have been born if you lived as {name}
Daddies
Lifespan maximum
body
Hermaphrodite ⚥
North America and Greenland, from tundra to forests
embryo
Incisors count
summer warm, many oaks, birches, maples
Length
kg
lots of rain, warm and pleasant summer
arboreal
Observations
◉{N} more on tap