How many species of amphibians are known to date (approx.)?

About how many amphibian species are known to date? The answer is over 8,000.

Amphibians include frogs, toads, salamanders, newts, and caecilians. The exact total changes as scientists discover new species, revise classifications, and split previously recognized species using genetic evidence. For that reason, “over 8,000” is an appropriate approximate answer rather than a permanent census. Reference totals have placed the number at roughly 8,000 living species, with newer taxonomic work continuing to add names.

Frogs and toads make up by far the largest share—nearly 90 percent of known amphibian species. Salamanders and newts form another major group, while the lesser-known caecilians are limbless, burrowing amphibians that resemble worms or snakes.

The word amphibian comes from an Ancient Greek expression meaning “both kinds of life,” reflecting the group’s traditional association with aquatic and terrestrial habitats. Many species begin life as aquatic larvae and later metamorphose, although some bypass a free-swimming tadpole stage. Their permeable skin and complex life cycles also make amphibians valuable indicators of environmental change.