Zoo Stock Species and the Red List
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 |
|
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 |
Creatures at Tama Zoo
Creatures at Tama Zoo
African Bush Elephant
Loxodonta africana
African Bush Elephant
Loxodonta africanaIt is the largest land animal. Both males and females have tusks, which have been known to grow to about 350 cm in length in males. Its long snout can hold up to 10 liters of water at a time, which it then transfers to its mouth for drinking. It drinks more than 200 liters of water per day.
| classification | Mammalia, Proboscidea, Elephantidae |
|---|---|
| English name | African Bush Elephant |
| distribution | Sub-Saharan Eurasian Moorhen |
| Residence | Forest, Eurasian Moorhen |
| Size |
Height: 2.5-4m
Weight: Males 5-7 tons, females 2-3 tons |
| food | Tree branches, leaves, bark, and grass |
| Red List |
IUCN: EN (crisis)
|
nose
It is connected to the upper lip. The long, stretched part has no bones and is made of muscle, making it soft and strong. There are finger-like protrusions on the top and bottom of the nose, which allow them to pick up even a single peanut. They have an excellent sense of smell, and can locate water several kilometers away by smell.
ear
They are very large and thin. If you look at them from the back, you can see that they have many blood vessels. Their large, round bodies tend to trap heat, so they release it through their ears to prevent their body temperature from getting too high. They also spread their ears when they want to appear larger or to hear better.
skin
They have wrinkles all over their bodies. Their large bodies tend to trap heat, so they create wrinkles to store water and mud and increase the surface area of their skin, making it easier for heat to escape. Their skin is gray, but because they often take mud baths, it is the same color as the surrounding soil.
fang
Both males and females have thick, long tusks. They begin to grow at about two years of age and continue to grow throughout their lives. Older individuals can reach a length of 3.5 meters and a combined weight of 130 kg. The tusks are mainly used for feeding, as tools to peel bark from trees and dig up roots. They are also used as display tools when encountering other individuals, and can sometimes be used as weapons.
feet
In order to support their heavy weight, their feet are pointing straight down. They have four claws on their front feet and three on their back feet. Although it looks like their heels are touching the ground, they actually walk on their tiptoes. The soles of their front and back feet have elastic pads that support their weight.
Pregnancy and childbirth
The gestation period is about 22 months, and a single calf is born every four to five years.

