* The IUCN Red List is constantly being updated: The International Union for Conservation of Nature (IUCN) maintains the Red List, which is the most comprehensive inventory of global conservation status for species. However, this list is dynamic. New species are discovered, conservation efforts evolve, and threats change.
* Different categories of threat: The Red List uses categories like "Critically Endangered," "Endangered," and "Vulnerable." So, the number of threatened mammals depends on which categories you consider.
* Data gaps exist: For some species, we simply lack enough data to assess their conservation status accurately.
However, we can say that the situation is serious:
* Over 1,000 mammal species are classified as threatened with extinction.
* The number is likely higher due to data gaps and the constantly evolving threats.
Major threats to mammals:
* Habitat loss and degradation
* Climate change
* Hunting and poaching
* Invasive species
* Pollution
For more specific information:
* You can check the IUCN Red List website for the latest data on threatened mammals: [https://www.iucnredlist.org/](https://www.iucnredlist.org/)
* Look for reports from conservation organizations like WWF and the Wildlife Conservation Society.
Remember, these are just estimates, and the true number of threatened mammals could be significantly higher.