What kind of animal is a bison (American bison, European bison)? We will explain its characteristics, ecology, habitat, and lifespan. When it comes to bison, the most famous are the European bison and the American bison. However, in America, it was on the verge of extinction. I will also explain the background.
What is a bison? About basic status
Bison is an animal classified into the genus Bison in the order Bovidae (artiodactyla) and family Bovidae. It is a medium-sized animal with a body length of 250-350 cm and a weight of 650-1,350 kg. As I will introduce below, there are many subspecies, and they are divided into many classifications. They have a large head and well-developed shoulder muscles to support it.
| Japanese(和名) | バイソン |
| English(英名) | Bison |
| scientific name(学名) | Bison |
| classification(分類) | Mammalia、Artiodactyla、Bovidae、Bison 哺乳綱、ウシ目(偶蹄目)、ウシ科、バイソン属 |
| IUCN Status(保全状況) | VULNERABLE |
| Height(身長) | 250-350cm |
| Weight(体重) | 650-1,350㎏ |
Extant species are roughly divided into two types.
Extant species are divided into two main species: the European bison and the American bison. As for the American bison, it was once on the brink of extinction, but it has recovered.
| Name:名前 | academic name (学名) | Habit (生息地) |
| European bison ヨーロッパバイソン | Bison bonasus | Europe ヨーロッパ |
| American bison アメリカバイソン | Bison bison | North America 北アメリカ |
バイソンの分類学(Taxonomy)
| ランク | 分類 |
|---|---|
| 界 (Kingdom) | 動物界 (Animalia) |
| 門 (Phylum) | 脊索動物門 (Chordata) |
| 綱 (Class) | 哺乳綱 (Mammalia) |
| 目 (Order) | 偶蹄目 (Artiodactyla) |
| 科 (Family) | ウシ科 (Bovidae) |
| 属 (Genus) | バイソン属 (Bison) |
| 種 (Species) | 主な種は2つ: ・アメリカバイソン(Bison bison) ・ヨーロッパバイソン(Bison bonasus) |
About bison habitat
Bison are distributed in Europe and North America.
- American Bison (Bison bison)
Geographical Distribution: North America
United States (especially the Midwest and Rocky Mountains)
Canadian Plains
Habitat:
Prairies and open woodlands
Her thick fur allows them to withstand the cold, even in snowy winters
Behavior:
Traveling in herds and feeding
Typically preferring areas near water
- European Bison (Bison bonasus)
Geographical Distribution: Europe
Forest reserves in Poland, Belarus, Ukraine, and Romania
Habitat:
Forests and mixed forest-grasslands
Her thick fur allows them to withstand harsh winters
Behavior:
Live in herds
Relatively limited range within forests
- Common Characteristics
Pack Life: Males and females form groups and breed, eat, and travel together
Diet: Herbivorous. Eat mainly grasses, leaves, and shrubs
Adaptations:
Tolerate harsh winters and seasonal fluctuations
Move over a wide area to secure food
feature is? What kind of creature is it?
Bison is a member of the cow family and has slightly elongated horns. The hair on the upper body, including the head, is short and the ears are visible. Bison live in grasslands, forests, and steppes, and do not live alone but form large herds. Their muscles are more developed than other animals.
- Physical Characteristics
Body Type: Stocky build, well-developed shoulder muscles, and a large head.
Body Length and Weight:
American Bison: Approximately 2.5-3.5m in length, 450-1000kg in weight
European Bison: Approximately 2.5-3.3m in length, 500-900kg in weight
Horns: Both males and females have curved horns used for defense and fighting.
Fur:
Thick, coarse fur makes them resistant to the cold of winter.
The hair on their front shoulders is particularly long, resembling a mane.
- Behavior/Personality
Pack Life: Males and females live in groups, mating, eating, and traveling together.
Activity: Primarily diurnal.
Defense/Aggression:
Generally gentle, but aggressive when protecting their young or the pack.
Uses their horns and body weight to fight off predators and rivals.
- Diet
Herbivore: Eats mainly grasses, shrub leaves, and young shoots.
Diet: Consumes more than tens of kilograms of grass per day.
- Adaptability
Thick fur and fat allow them to survive harsh winters and snowy environments.
Migrates over a wide area to secure food and water.
Social Ability: Works together as a group to protect themselves from danger.
- Intelligence/Social Ability
Highly Social: They understand group order, and experienced individuals often assume leadership roles.
Communication: Communicates with others through growls and body movements.

What will your personality look like?
Male bison occasionally tend to live alone, but when viewed as a whole, they are clearly highly social and behave in groups, forming herds. This formation allows them to protect themselves from predators.
- Cooperativeness within the group
Highly social: Males and females form groups and cooperate in breeding, migration, and vigilance.
Leadership: Experienced males and females lead the group, detect danger, and make migration decisions.
Friendly: Protective behavior is observed in these groups, including children and weaker individuals.
- Gentleness and Defensiveness
Generally gentle and calm: They rarely fight and are not aggressive toward their peers or other animals.
Highly alert: They are sensitive to predators and humans. When they sense danger, they will use their horns to defend themselves or flee as a group.
Aggression: They will attack forcefully when necessary (for group defense, or competition between males during breeding season).
- Intelligence and Learning Ability
Highly adaptable to their environment: They learn winter behavior and food security methods.
Understanding social rules within the group: Young individuals learn behavior by observing adults.
Warning signals: They warn others of danger through calls and body movements.
- Behavioral Tendencies
Calm and cautious: They usually walk leisurely and graze.
Hermit mentality: They prioritize the safety of the herd over individual behavior.
Sensitive to the seasons and environment: During cold winters and periods with little grass, they adjust their movement and resting schedules as a group.
What is the ecology of bison?
Bison are herbivores, eating grass, leaves, buds, twigs, and bark. The breeding pattern is viviparous, giving birth to one calf from June to September. The gestation period is 285 days, and males reach sexual maturity at 3 years of age, while females reach sexual maturity at 2 to 3 years of age. The lifespan is estimated to be 18 to 22 years.
- Diet
Herbivore: Eats mainly grasses, shrub leaves, and young shoots.
Food Quantity: Consume tens to hundreds of kilograms of plants per day depending on body weight.
Dietary Adaptations: Supplements nutrition by eating shrub branches and fallen leaves, even in winter.
- Movement/Home Range
Pack Life: Males and females form packs and breed, eat, and travel together.
Range of Activity: American bison roam vast grasslands, while European bison are confined to relatively limited forest ranges.
Activity Period: Diurnal, foraging and resting during the day.
- Reproduction
Breeding Season (Bullring Season): Mainly occurs in the summer.
Gestation Period: Approximately 9 months.
Birthing: Usually a single calf, often in the spring.
Raising: Mothers and the pack work together to protect their young.
- Sociality/Behavior
Highly Social: Maintains order within the pack, with experienced individuals acting as leaders.
Vigilance Behavior: They are sensitive to the approach of predators and humans, and use their calls and horns to warn others of danger.
Defense: They are not aggressive, but will use their horns and body weight to defend themselves when necessary.
- Intelligence and Learning Ability
Environmental Adaptability: They change their behavior depending on the season and weather.
Social Learning: Young animals learn pack rules and how to detect danger by observing adults.
What are the natural enemies of bison?
Bison are large animals and live in groups, so they are difficult to prey on, but weaker individuals are preyed on by mountain lions, brown bears, and other animals.

About Bison Calves
This section summarizes the characteristics and lifestyle habits of bison (genus Bison) calves.
- Birth and Size
Birth: Birth occurs primarily in the spring (April-June) after activity resumes.
Birth Weight: Approximately 20-45 kg (depending on the species and the mother’s size).
Body Length: Approximately 80-100 cm.
Fur Color: Light brown immediately after birth, changing to the same dark brown as adults as they mature.
- Rearing and Protection
Maternal-centered Protection: The mother is always by the calf’s side to protect it for the first few months of life.
Pack Cooperation: Other members of the pack may also guard and protect the calf.
Protection from Danger: The entire pack will protect the calf when predators or humans approach.
- Developmental Process
Nursing Period: Approximately 6 months of age.
First Outing: The calf practices walking behind its mother to become accustomed to the herd’s movements.
The Importance of Play:
Playing with other young animals in the pack helps them develop muscle strength and balance.
They learn social skills, their place in the pack, and guarding behavior.
- Learning and Socialization
Learning from their mother and pack:
They learn how to select food, sense danger, and the rules of the pack.
Role in the pack:
As young animals, they focus on observation and play, and will eventually establish their place in the pack.
- Maturity
Males: At 1-2 years of age, they gradually leave their maternal group and may act alone or in small groups.
Females: They remain in the maternal group and learn skills for future reproduction and child-rearing.
Difference between bison and buffalo
By the way, some people don’t know the difference between bison and buffalo. Buffalo often refers to water buffalo that live in Asia and Africa. Bison, on the other hand, refers to those living in North America and Europe. Bison can be easily distinguished from buffalo because they have much longer fur. You can tell by the length of your hair.
Are bison an endangered species?
Bison are not an endangered species. The Japanese bison, a subspecies of the American bison, is an endangered species, but other species are stable. In fact, American bison were on the verge of extinction.
American history is involved
Originally, the United States was inhabited by indigenous tribes who used bison for events and other purposes, and they were never overhunted. However, after the white people forced the Indians to move to reservations, they overhunted the bison. Although their numbers were reduced to a few hundred, they managed to avoid extinction by introducing European bison in time.
Shinrin bison is in a pinch
Bison bison (scientific name: Bison bison athabasca) is at risk of extinction in Canada and the United States. The largest herd totals only about 2,500 individuals. According to 2014 information, the U.S. Fish and Wildlife Service has authorized the reintroduction of “non-essential experimental” populations of spiny bison to three areas in Alaska where programs to protect them are in place. . It is managed in general national parks and protected areas, and its population is expected to increase. I’m looking forward to the future of the United States.
Can bison be kept?
As explained above, bison are very large animals. Therefore, breeding them is extremely difficult. I have to say that it is difficult because it requires a considerable amount of space.


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