Most Threatened Mammal Species
Most Threatened Mammal Species: the dated top ten, the source and what this count of threatened mammal species, excluding whales and porpoises comparison tells us.
In this 2018 source snapshot, Indonesia has the highest reported value among eligible entries: 191.00. Madagascar follows at 121.00. The unit is count of threatened mammal species, excluding whales and porpoises.
About the data
Snapshot retrieved 14 October 2026. 198 eligible observations. Among supported countries and separately reported territories with data. Missing observations are excluded, not treated as zero. Rankings use unrounded values; displayed values are rounded to two decimals. 2018 is used to avoid an unresolved tie at the 2022 ten-answer cutoff.
| Country | Value |
|---|---|
| Indonesia | 191 |
| Madagascar | 121 |
| Mexico | 96 |
| India | 93 |
| Brazil | 80 |
| China | 73 |
| Malaysia | 71 |
| Australia | 63 |
| Thailand | 59 |
| Colombia | 58 |
What the numbers mean
A threatened-species total can be high because a country contains many mammal species in the first place. It is not the percentage of mammals threatened. The source excludes whales and porpoises. We use the 2018 observation because the 2022 data tie Colombia and Vietnam at the ten-answer boundary; choosing just one would make a valid answer unfairly wrong.
Where the top ten ends
The tenth entry is Colombia at 58.00. This is a cutoff within the published comparison, not evidence that countries outside the table have no activity. The date and coverage are part of the answer: updating the source or changing the eligible territories can change who appears.
Source and method
Snapshot retrieved 14 October 2026. 198 eligible observations. Among supported countries and separately reported territories with data. Missing observations are excluded, not treated as zero. Rankings use unrounded values; displayed values are rounded to two decimals. 2018 is used to avoid an unresolved tie at the 2022 ten-answer cutoff.
Source: World Bank