Ants outweigh the wild birds and mammals combined
Formicidae evolved from wasp ancestors in the Cretaceous and now number more than thirteen thousand eight hundred described species of an estimated twenty-two thousand. Elbowed antennae and a pinched waist mark the clan. In moist tropics their biomass can exceed all wild birds and mammals put together.
Colonies range from a few dozen cavity dwellers to nests of millions, and rare supercolonies hold hundreds of millions. Castes of sterile workers, soldiers, and reproductive queens and males organise labour through chemical talk. Ants occupy nearly every landmass except Antarctica and a handful of harsh or remote islands such as Greenland, Iceland, and Hawaii without native species. Social problem-solving and niche flexibility explain the spread; humans borrow ants for food, medicine, ritual, and pest control even while fighting invasive species.
E. O. Wilson's team identified Cretaceous Sphecomyrma in amber about ninety-two million years old, mixing wasp and ant traits. The oldest ant fossils sit mid-Cretaceous around one hundred thirteen to one hundred million years ago. Early forms were scarce on Laurasia—about one percent of insect fossils—then radiated after the end-Cretaceous. A twenty twenty taxonomy parks some mid-Cretaceous Camelomecia outside Formicidae proper within Formicoidea.
Body size spans zero point seven five to fifty-two millimetres among living ants; fossil queen Titanomyrma giganteum reached six centimetres with a fifteen-centimetre wingspan. Colours run yellow to black, with occasional greens and metallic tropical sheens. West Germanic roots behind English ant once meant the biter. From amber snapshots to Amazon leaf-cutters, the story is eusocial engineering scaled to planetary biomass. That combination of caste labour, chemical messaging, and opportunistic diets lets a few millimetres of insect rewrite soil chemistry and seed shadows across continents. The biter of West Germanic etymology has become an ecological engineer measured in megatons of living tissue.
Source: Ant
