Which of the following vertebrate groups has the most endangered species?

The correct answer is: Mammalian

• An endangered species is a species that is at high risk of becoming extinct.
• Plants have the highest number of endangered species.
• Mammals have 177 endangered species which represents 3.8% of all the species. Similarly, birds have 188 endangered species which represents 1.9% of all the species.
• Reptiles, amphibians, and fishes have 47, 32, and 158 endangered species representing 0.7%, 0.7%, and 0.6% respectively of all the species in each group.