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and males have wings, those wings stick out of the top of their<br />

thoraxes.<br />

Abdomen and petiole: one lump or two?<br />

The abdomen is where all the action happens; this ant segment<br />

holds all the big-time organs. Almost all of an ant’s digestive<br />

system is packed into its booty, as well as tons of chemicalemitting<br />

glands, stingers and trail markers, the entire reproductive<br />

system, and most of its fat storage. Many ant species have a<br />

special stomach in their abdomens that does not digest food.<br />

Instead, they use this stomach as a backpack to carry food back<br />

to the nest where they share it with their sisters by spitting it into<br />

their mouths.<br />

The first part of an ant abdomen is called the petiole. The petiole<br />

is that really skinny section between the thorax and an ant’s big<br />

fat bottom, which we often call a gaster. The petiole gives ants<br />

that Hollywood wasp waist and helps them to be flexible when<br />

they move around. A lot of people interested in identifying ants<br />

check that petiole first to see if it has one bump like some ant<br />

species have or two bumps like other species have.<br />

Where’s the nose?<br />

Unlike us, ants don’t have noses. Instead, they smell and breathe<br />

with different body parts. To smell, they mostly use their<br />

antennae. To breathe, they have little holes all along their bodies<br />

called spiracles, which they can open and close. When they<br />

open, air rushes into beautiful silvery tubes that lace their insides<br />

and bathe their organs with the air they need to survive.<br />

The Ant Life Cycle<br />

Like butterflies, beetles, and flies, ants grow up in four stages: a<br />

tiny egg, a worm-like larva, a pupa, and the adult stage that most<br />

of us recognize as ants.<br />

Eggs<br />

For most species, only the queen lays eggs that become workers.<br />

Most of the time, eggs are creamy-colored orbs smaller than the<br />

period at the end of this sentence. When queens fertilize the<br />

eggs, females hatch. When they don’t, males hatch.<br />

17

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