Ant

Ants belong to the family Formicidae within the order Hymenoptera, the same order that includes bees and wasps. With well over 12,000 described species worldwide, ants are among the most successful and widespread insect groups on Earth, occupying nearly every terrestrial habitat except the polar ice caps.

What makes ants so notable is their eusocial lifestyle: each colony functions as a superorganism with a reproductive queen (or queens), sterile female workers, and, seasonally, winged reproductive males and females. This division of labor allows colonies to build elaborate nests, farm other insects, cultivate fungus, and defend territory far more effectively than a solitary insect could.

Ecologically, ants are major soil aerators, seed dispersers, scavengers, and predators of other invertebrates, making them a keystone group in most ecosystems they inhabit.

• Body clearly divided into three segments: head, thorax, and a narrow, constricted waist (petiole) connecting to the abdomen.
• Elbowed (geniculate) antennae that bend at a sharp angle partway along their length.
• Six legs, no wings on worker ants; only reproductive queens and males grow wings temporarily during mating flights.
• Coloration ranges from black and brown to red, yellow, or bicolored depending on species.
• Lookalikes: winged ants are often confused with termites, but ants have a pinched waist and elbowed antennae, while termites have a broad waist and straight, beadlike antennae.

Ants are found on every continent except Antarctica, nesting in soil, under rocks and logs, inside dead wood, in leaf litter, or within building voids and masonry. Most temperate species are most active from spring through early fall, slowing activity or retreating underground during cold winter months, while tropical species remain active year-round.

Ants forage in coordinated trails using chemical pheromone signals laid down by scout workers to guide nestmates to food sources. Diet varies widely by species and includes other insects, honeydew produced by aphids, seeds, nectar, and scavenged organic matter. Colonies communicate constantly through touch, chemical cues, and vibration, and many species defend their nest aggressively when disturbed, some capable of biting or spraying formic acid in defense.

Ants undergo complete metamorphosis: egg, larva, pupa, and adult. A queen lays eggs that hatch into legless, grub-like larvae fed and groomed by worker ants; larvae then pupate before emerging as adults. Colonies can persist for years, with a single queen living far longer than individual workers, and new colonies are founded during seasonal nuptial flights when winged males and females mate and disperse.