Blesbok

Bontebok or sassaby or blesbok — © Zveriki.com, derived work based on image based on the original work of Derek Keats from Johannesburg, South Africa, Creative Commons Attribution-Share Alike 2.0 Generic

Age

The blesbok typically lives from 17 years and 3 months to 28 years and 9 months, although the maximum recorded lifespan is 18 years; the species reaches sexual maturity between 2 and 4 years of age. The young are born with their eyes open and begin walking immediately. The embryo develops inside the mother for approximately eight months. The young feeds on its mother's milk and gradually begins to eat grass, a stage lasting from 1 day to 6 months. The adult phase begins when the animal is capable of reproduction and lives independently, lasting from 2 to 20 years.

Phenotype

The young blesbok has soft fur that is lighter than that of adults. The species' body is covered with brown fur and a white belly, and a white stripe extends from the nose upwards along the face. Adult blesboks possess horns with rings, which are used for protection and combat. Long legs enable the species to run quickly.

Physiology

The blesbok has a body length ranging from 85 centimeters to 1 meter; its mass is 84.5 kilograms. During the embryonic stage, the body mass ranges from 1 gram to 7 kilograms. The young have a body mass between 7 and 25 kilograms and a body length of 60 to 85 centimeters. Adult blesboks weigh from 55 to 70 kilograms and measure 85 centimeters to 0.95 meters in body length.

Habitat

Blesboks inhabit altitudes ranging from 1 kilometer to 2 kilometers above sea level and are found across several biomes, including mountainous meadows characterized by cold temperatures, abundant grass and shrubs, tropical savannas with uneven rainfall and numerous trees, and temperate steppes with plentiful grass and few trees. The species occupies terrestrial landscapes such as grasslands and steppes, grassy areas, and meadows; the climate varies considerably, encompassing hot steppes with very hot, dry summers and abundant grass, extremely arid conditions with infrequent rainfall, winters with little precipitation and more rain in summer, hot climates with almost no rainfall, and very hot summers exceeding +25 to +30 degrees Celsius.

Shelter

Blesboks inhabit open grassy plains and do not have permanent or long-term shelters; the species does not use permanent shelters. The blesbok lacks fixed shelters and does not have a permanent refuge. The materials used for shelter consist of grass, which serves for resting.

Geography

The blesbok is found within the Afrotropical realm.

Feeding

The blesbok feeds on grass, clips young shoots on the plains, and its food consists of grass, young shoots, and sprouts. The blesbok's feeding strategy includes searching for and obtaining food, as well as grazing. The species' daily food requirement is from 2 kg to 4 kg.

Reproduction

The blesbok is a terrestrial species that reproduces through live birth, with young born alive on land and not hatching from eggs or larvae; gestation lasts eight months, and a female gives birth to one offspring after this period, with the young quickly standing. The species reaches maturity from two to four years of age, and females have litters of one. Reproduction always occurs through fertilization, without generational changes, and the interval between reproduction is from one to two years.

Length
850–1000 mm
Lifespan
6301–10501 days 17–29 years
24818
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bontebok-or-sassaby-or-blesbok
en
bontebok or sassaby or blesbok
Damaliscus pygargus phillipsi
The blesbok is a medium-sized antelope with a white stripe on its face. The animal inhabits the grassy plains of South Africa and feeds on grass.
The blesbok is distinguished by a white stripe on its face and living in open steppes. It helps preserve grassy plains and serves as food for large predators.
grazing
trophic:herbivore
#d8cfbc
Mass (adult even-toed ungulate, male)
65000–85000 g
Mass (embryo)
1–7000 g
Mass (young)
7000–25000 g
Mass (adult even-toed ungulate, female)
55000–70000 g
Length (young)
600–850 mm
Length (adult even-toed ungulate, male)
900–1000 mm
Length (adult even-toed ungulate, female)
850–950 mm
Lifespan maximum
6575 days 18 years
Theoretical lifespan
6301–10501 days 17–29 years
Gestation
243 days 8 months
Litter size
1
Maturity
730–1460 days 2–4 years
Offspring
1
Repro interval
365–730 days 1–2 years
Horns count (adult even-toed ungulate, male)
2
Legs size (adult even-toed ungulate)
700–900 mm
Horns size (adult even-toed ungulate, male)
350–500 mm
Reproduction
normal sexual
Comparable in mass
Refrigerator
Biome
Temperate steppe
Biome
Montane grasslands
Biome
Tropical savanna
Realm
world of Afrotropics
Landscape
terrestrial herbaceous
Landscape
terrestrial
Landscape
terrestrial grassland and steppe
Climate
Hot steppe
Climate
Low precipitation in winter
Climate
Very hot summer
Climate
Hot and almost no precipitation
Climate
Steppe
Climate
Warm summer
Climate
Very dry
Climate
Warm or hot summer and rains
Climate
Pleasant summer
Climate
Warm winter with almost no precipitation
Landscape
grasslands
Shelter
no permanent shelter
Trophic type
herbivore
Reproduction
live birth
Reproduction
land
Physiology
The fur becomes thicker towards the cold season.
6300.5625
10500.9375
6300.5625
10500.9375
850.0
1000.0
The fur becomes thicker towards the cold season.
-1
-1
meadows, prairies, forb glades on land
homogamy, reproduction always with fertilization, no alternation of generations
pecking
Worker
Were {name} like {animal}, then:
birth time
Hot and almost no precipitation
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
t
When your next jubilee falls in {name} life years
Human
hot Africa south of the desert, many savannas and forests
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 even-toed ungulate
Maturity
Refrigerator
About health
Warm or hot summer and rains
When your next birthday would fall if you lived as {name}
Head blaze color
Repro interval
results
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
rains are very rare, almost a desert
little precipitation in winter, more in summer
Trophic type
Filters
Captures or processes food by biting or nipping with the mouth.
summer very hot, dry, lots of grass
Warm winter with almost no precipitation
young shoots and sprouts
grass
Upcoming birthdays
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
young shoots
young are born live on land, not hatched from eggs or roe
Age (juvenile)
Age (from birth to death)
Age (embryo)
Wanderers
Jubilee = every 10th birthday
More:
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
Montane grasslands
live birth
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.
Horns count
hot, uneven rains, lots of grass and trees
Pets
Repeatedly strikes or probes substrate with beak to obtain food.
biting
Hot steppe
Legs size
{name} jubilee
cm
Old-timers
Find an animal or breed...
turns
Rascals
terrestrial grassland and steppe
terrestrial herbaceous
Horns size
hot Africa south of the desert, many savannas and forests
Litter size
Tropical savanna
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
°C
Not specified
Share
Actively searching habitats to locate food items.
Where are they found?
Species lacks any fixed or lasting shelter structure.
steppe
herbivore
Feeds by cropping or nibbling low-growing vegetation or algae.
Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
leaves and stems of grasses and other herbaceous vegetation
Bro
winter dry and warm
normal sexual
Taxons
if born as {name}
age
birth date
no permanent shelter
rest
Fur color
Close
grasslands
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
My weight?
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
lots of grass, few trees, rains are rare
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
Plants
Gestation
land
summer very hot, above +25…+30 °C
{name} birthday
grass
Link copied
No results found
On the map
young shoots, sprouts, green plant shoots
Pleasant summer
all life stages
Female ♀
Body color
world of Afrotropics
grazing
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.
Horns color
birth year
lots of grass, few trees, rains occur
Maturity
lots of rain, summer from warm to very hot
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
Male ♂
until the celebration
young
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?
Very dry
Neither
from birth to adulthood
Young offspring still dependent on parental care.
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Hard dental structures used to bite, tear, or scrape food.
world of Afrotropics
Duration
This is me
Steppe
Gamers
How are they built?
Temperate steppe
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Asexual
swap
Who among us will transform as if by magic and become like {animal}?
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?
Denotes a grassland or steppe habitat preference.
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
47 to 74 kilograms, 1.2 – 2.8 meters
very hot and almost no precipitation
foraging
Hermaphrodite ⚥
embryo
Length
kg
Observations
◉{N} more on tap
young
pupa
imago
adolescent
adolescent
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
thytl-aghr
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
bontebok-or-sassaby-or-blesbok
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  • The blesbok can reach speeds of up to 70 km/h and perform “stotting” jumps.
  • The blesbok is a subspecies of the bontebok, famous for the bright white “face” (from Afrikaans “bles” — blaze) that is interrupted by a brown band above the eyes.
  • The blesbok is one of the most successful examples of antelope recovery thanks to private farms.
  • Both sexes have lyre-shaped horns; males are larger.
  • Its bright coloration makes it one of the most recognisable ungulates of South Africa.
  • Gestation lasts about 8 months and calves follow their mothers from birth.
  • The characteristic facial mask serves as a visual signal in the herd.
  • It inhabits the open highveld grasslands of South Africa and prefers short grass.
  • The species is assessed as Least Concern, although hybridisation with the bontebok remains a problem.
  • The blesbok is one of the most successful examples of antelope recovery thanks to private farms.

Age

  • Gestation lasts about 8 months and calves follow their mothers from birth.

The blesbok typically lives from 17 years and 3 months to 28 years and 9 months, although the maximum recorded lifespan is 18 years; the species reaches sexual maturity between 2 and 4 years of age. The young are born with their eyes open and begin walking immediately. The embryo develops inside the mother for approximately eight months. The young feeds on its mother's milk and gradually begins to eat grass, a stage lasting from 1 day to 6 months. The adult phase begins when the animal is capable of reproduction and lives independently, lasting from 2 to 20 years.

Phenotype

  • The blesbok can reach speeds of up to 70 km/h and perform “stotting” jumps.
  • The blesbok is a subspecies of the bontebok, famous for the bright white “face” (from Afrikaans “bles” — blaze) that is interrupted by a brown band above the eyes.
  • Both sexes have lyre-shaped horns; males are larger.
  • Its bright coloration makes it one of the most recognisable ungulates of South Africa.
  • The characteristic facial mask serves as a visual signal in the herd.

The young blesbok has soft fur that is lighter than that of adults. The species' body is covered with brown fur and a white belly, and a white stripe extends from the nose upwards along the face. Adult blesboks possess horns with rings, which are used for protection and combat. Long legs enable the species to run quickly.

Physiology

The blesbok has a body length ranging from 85 centimeters to 1 meter; its mass is 84.5 kilograms. During the embryonic stage, the body mass ranges from 1 gram to 7 kilograms. The young have a body mass between 7 and 25 kilograms and a body length of 60 to 85 centimeters. Adult blesboks weigh from 55 to 70 kilograms and measure 85 centimeters to 0.95 meters in body length.

Habitat

  • Its bright coloration makes it one of the most recognisable ungulates of South Africa.
  • It inhabits the open highveld grasslands of South Africa and prefers short grass.

Blesboks inhabit altitudes ranging from 1 kilometer to 2 kilometers above sea level and are found across several biomes, including mountainous meadows characterized by cold temperatures, abundant grass and shrubs, tropical savannas with uneven rainfall and numerous trees, and temperate steppes with plentiful grass and few trees. The species occupies terrestrial landscapes such as grasslands and steppes, grassy areas, and meadows; the climate varies considerably, encompassing hot steppes with very hot, dry summers and abundant grass, extremely arid conditions with infrequent rainfall, winters with little precipitation and more rain in summer, hot climates with almost no rainfall, and very hot summers exceeding +25 to +30 degrees Celsius.

Shelter

Blesboks inhabit open grassy plains and do not have permanent or long-term shelters; the species does not use permanent shelters. The blesbok lacks fixed shelters and does not have a permanent refuge. The materials used for shelter consist of grass, which serves for resting.

Geography

  • It inhabits the open highveld grasslands of South Africa and prefers short grass.

The blesbok is found within the Afrotropical realm.

Feeding

The blesbok feeds on grass, clips young shoots on the plains, and its food consists of grass, young shoots, and sprouts. The blesbok's feeding strategy includes searching for and obtaining food, as well as grazing. The species' daily food requirement is from 2 kg to 4 kg.

Reproduction

  • Gestation lasts about 8 months and calves follow their mothers from birth.

The blesbok is a terrestrial species that reproduces through live birth, with young born alive on land and not hatching from eggs or larvae; gestation lasts eight months, and a female gives birth to one offspring after this period, with the young quickly standing. The species reaches maturity from two to four years of age, and females have litters of one. Reproduction always occurs through fertilization, without generational changes, and the interval between reproduction is from one to two years.

Size

  • The blesbok can reach speeds of up to 70 km/h and perform “stotting” jumps.
  • Both sexes have lyre-shaped horns; males are larger.
  • The characteristic facial mask serves as a visual signal in the herd.
  • The species is assessed as Least Concern, although hybridisation with the bontebok remains a problem.