They nibble thousands of holes and investigate 500-1,000 of these each night. They also have special adaptations to digest gums. This is supplemented by insects. They also have special nails on their feet to investigate tree trunks for insects. They eat little fruit.
Galagos prefer dense thickets where their food is abundant and where they are safe from predators.
In some, a mated pair and their young may sleep together, in others the males only keep in regular contact with females in their territory while they are outside the sleeping nest. Most split up to forage alone . Females may forage in a small group, but males don't forage together. They warn off rival groups with loud calls. Galagos are territorial, marking the boundaries with scent and by territorial calls.