Zoo Stock Species and the Red List

Zoo Stock

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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 Inokashira Park Zoo

Patagonian Mara

Dolichotis patagonum

Patagonian Mara
Patagonian Mara
Patagonian Mara
Patagonian Mara

Although they look similar to rabbits or deer, they are actually closer to guinea pigs among rodents.
They are known for their long legs and can run at speeds of up to 45km per hour. Unusually for rodents, male and female pairs are said to remain together for life, taking turns watching over each other while feeding. Multiple pairs share burrows that they dig themselves and raise their young.

classification Mammals, Rodentia Domestic Guinea Pig
English name Patagonian Mara
distribution Mainly Argentina
Residence grassland, forest, shrubland
Size
Head torso length: approx. 70cm
food grass
Red List
IUCN: NT (Near Threatened)
Inokashira Park Zoo Exhibition Area