Fauna
Khao Yai’s forests are teeming with wildlife. Wildlife is plentiful (46 mammal species, at least 74 species of herptile and thousands of invertebrates) but often hard to see. Gibbons provide an excellent morning wake-up call with their mournful hoots. Quiet, patient walkers may catch a glimpse of these tree-living apes. Pig tailed macaques are often seen on the roadsides. Civets, squirrels, porcupines, and wild pigs add a bit of variety. Snakes and lizards usually make their presence known by a rustle in the undergrowth as you are walking.