Galagos have large eyes that give them good night vision in addition to other characteristics, like strong hind limbs, acute hearing, and long tails that help them balance. Their ears are bat-like and allow them to track insects in the dark. They catch insects on the ground or snatch them out of the air. They are fast, agile creatures. As they bound through the thick bushes, they fold their delicate ears back to protect them. They also fold them during rest. They have nails on most of their digits, except for the second toe of the hind foot, which bears a grooming claw. Their diet is a mixture of insects and other small animals, fruit, and tree gums. They have pectinate (comb-like) incisors called toothcombs, and the dental formula: They are active at night.