Genera surviving today comprise 56% of the genera in Baltic amber fossils (early Oligocene), and 92% of the genera in Dominican amber fossils (apparently early Miocene).
Termites, although sometimes called 'white ants', are not ants.
They belong to the sub-order Isoptera within the order Blattodea.
Termites are more closely related to cockroaches and mantids.
By the Oligocene and Miocene, ants had come to represent 20–40% of all insects found in major fossil deposits.
Of the species that lived in the Eocene epoch, around one in 10 genera survive to the present.
Ants thrive in most ecosystems and may form 15–25% of the terrestrial animal biomass.
Their success in so many environments has been attributed to their social organisation and their ability to modify habitats, tap resources, and defend themselves.Their long co-evolution with other species has led to mimetic, commensal, parasitic, and mutualistic relationships.These parallels with human societies have long been an inspiration and subject of study.Termites are eusocial, but differ greatly in the genetics of reproduction.The similarity of their social structure to that of ants is attributed to convergent evolution.Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera.