Zoo Stock Species and the Red List

Zoo Stock

This indicates that the species is included in the Second Zoo Stock Plan, which was formulated by the Tokyo Metropolitan Government in 2018. The plan sets goals for the next 10 years in three areas: "species conservation," "contribution to wildlife conservation," and "environmental education and conservation awareness." 124 animal species are included.

What is the Red List?

Based on scientific research, this is a list of wildlife classified by rank (category) indicating the degree of risk of extinction.
Livng Things Encyclopedia shows the categories (mainland and islands) assessed by the IUCN (International Union for Conservation of Nature) at the global level, the Ministry of the Environment for Japan, and the Tokyo Metropolitan Government for Tokyo.

The higher the category in each table, the higher the risk of extinction, and CR, EN, and VU are the three categories known as "endangered species." In Tokyo, species that are not at the NT (near threatened) level but are relatively rare are considered "species of concern."

IUCN categories
EX	extinction
EW	Extinction in the wild
CR+EN	—
CR	Serious crisis
EN	crisis
VU	emergency
NT	Near Threatened
LC・○	Low Concern
DD	Data shortage
LP	—

Japan (Ministry of the Environment) Category
EX	extinction
EW	Extinction in the wild
CR+EN	Endangered species
CR	Critically Endangered
EN	Endangered species
VU	Endangered species
NT	Near Threatened
LC・○	—
DD	Lack of information
LP	Endangered local population

Tokyo Category
EX	extinction
EW	Extinction in the wild
CR+EN	Endangered species
CR	Critically Endangered
EN	Endangered species
VU	Endangered species
NT	Near Threatened
LC・○	Unranked
DD	Lack of information
LP	Endangered local population

Creatures at Ueno Zoo

American Bison
Bison bison

They have a unique body shape with high, raised shoulders. Their heads are large and the shoulders that support them are also sturdy, and because their heads, shoulders, and front legs are covered in thick, curly hair, their front half appears very large. Males are particularly large, sometimes reaching shoulder heights of nearly 2 meters. Males fight by vigorously clashing their large heads and horns against each other.

classification	Mammalia, Artiodactyla, Bovidae
English name	American Bison
distribution	North America (mainly national parks and protected areas)
Residence	Grasslands, Poplar Park, Coniferous Forest
Size	Head torso length: 380cm Tail length: 90cm Weight: Males approximately 800 kg, females approximately 540 kg
food	grass
Red List	IUCN: NT (Near Threatened)

Ueno Zoo exhibition area

Ueno Zoo- Animals that live in the prairie - Monkeys of the world

Recovering from the brink of extinction

They once ranged from Alaska and Canada to northern Mexico, and numbered in the tens of millions in the early 19th century, but overhunting brought their numbers to the brink of extinction in the early 20th century. Thanks to conservation efforts, their numbers have now increased to tens of thousands in parks and protected areas.