The skulls of galagos are lightly built with a globular braincase and without strongly developed temporal ridges. The facial region is reduced. The orbits are directed more to the sides than in lorids. Their postorbital processes and zygomatic arches are slender, and the bullae are considerably inflated. As in the case of most other strepsirhines, galagos have a toothcomb made up of lower incisors and canines.
Male galagos have a baculum, a structure that male lorids lack.
Galago species vary in food habits from being highly insectivorous to eating leaves, fruit, or gums secreted by trees. Best known is genus Galago, which has five species, G. alleni, G. gallarum, G. matschiei, G. moholi and G. senegalensis. Type species of the genus is G. senegalensis. Demidoff's dwarf galago. Fur is soft, dense and woolly, coloration ranging from silver gray to brown.