The Lao PDR still harbors a rich fauna, with many species' populations and their habitats probably being less depleted within Lao PDR than within several other countries in the region. Although there is a significant hunting pressure in the country, the relative abundance of habitat and, in some areas, the long distance from human settlements have provided partial protection for the country's wildlife.
There are a reported 247 mammal species in the Lao PDR of which over a hundred are classified as "large animals". However, a precise total of species so far confirmed has little meaning as the pace at which further species are being confirmed to occur, and the ongoing investigation of groups of uncertain taxonomy (notably lorises, langurs, pigs, muntjacs, and squirrels) would make any figure obsolete within months of publication.
Surveys have recorded nearly 90 species of bats, of which 51 are considered to be key species. There are approximately 700 species of birds that have been recorded from the Lao PDR, with another 100 or so that are reasonably likely to occur. There are a number of reptiles and amphibians in Lao PDR, including the Siamese crocodile; the Phu Wua Rock Agamid Lizard, which is almost endemic to Laos with more than 95% of its range in the country; and the Lao Newt, which is totally endemic to Laos.