# How many endangered species are there?

> The IUCN Red List assesses more than 42,000 species as threatened (Vulnerable, Endangered or Critically Endangered) — including plants, fungi and animals. Over 1,300 mammals and thousands of amphibians and reptiles are threatened. IUCN Red List assesses more than 42,000 species as threatened across plants, fungi and animals.

**Category:** Conservation  ·  **Updated:** 2026-07-05

## Key takeaways
- 42,000+ threatened species on IUCN Red List.
- 1,300+ mammals — see mammal threatened answer.
- Many Not Evaluated — true risk likely higher.
- Amphibians ~40% threatened — highest major group share.
- Status can improve with conservation — not fixed.
- WARN cites IUCN per species on wildlife guides.

## Answer
Threatened totals rise as more species assessed — not only because extinction worsens. Many species remain Not Evaluated — true number at risk likely higher than published totals.

Critically Endangered is highest tier before Extinct in the Wild — orangutans, rhinos, many lemurs. Habitat loss and overexploitation dominate terrestrial threats; overfishing and climate change hit marine species.

Conservation can improve status — southern white rhino and humpback whale examples. Red List updates continuously — categories reflect current data not permanent labels.

## Understanding the headline number
42,000+ threatened includes orchids, corals, insects and mammals — not only charismatic megafauna. Total assessed 150,000+ species — fraction of world biodiversity described let alone evaluated. New assessments add species to threatened list because first time measured not only because declined — headline rise reflects assessment effort too. Still genuine crisis — extinction rates orders magnitude above background.

## Taxonomic patterns
Amphibians roughly forty percent threatened — chytrid and habitat loss. Reef corals bleaching climate driver. Birds many threatened but lower percentage than mammals in some analyses. Invertebrates understudied — likely many Data Deficient actually imperilled. Plants thousands threatened — orchid trade and deforestation. Single number hides taxonomic unevenness — donor prioritisation uses Critically Endangered with recovery potential.

## Recovery possible
Southern white rhino, humpback whale, bald eagle improved with protection — IUCN status upgraded when data confirm. Black-footed ferret, Arabian oryx EW recovery narratives — expensive long term. Without funding species slide CR to EW to EX — northern white rhino functional extinction warning. Red List not prophecy — policy choice encoded in trends.

## WARN citation practice
WARN wildlife guides cite IUCN status per species with year assessed — see what is IUCN Red List and how many mammal species threatened for depth. Donors asking endangered totals should read registration status for CIC honesty — gifts not Gift Aid eligible — before comparing charity appeals. Habitat and anti-poaching appeals link abstract numbers to field actions.

## FAQ
### How many endangered species are there?
42,000+ threatened (VU, EN, CR) on IUCN Red List all taxa — number rises as assessments increase.

### How many animals are endangered?
Subset of 42,000+ — mammals 1,300+ threatened; thousands of birds, reptiles, amphibians.

### Is the number increasing?
Threatened count rises with new assessments and some genuine declines — both factors.

### What is Critically Endangered?
Highest risk tier before Extinct in the Wild — see IUCN answer.

### Are most species endangered?
Most species Not Evaluated — among assessed, threatened fraction substantial and rising.

### Can species recover?
Yes — white rhino, humpback, bald eagle examples with sustained protection funding.

## Sources
- [IUCN Red List summary statistics](https://www.iucnredlist.org)

Human-readable page: https://worldanimalrescuenetwork.org/answers/how-many-endangered-species-are-there