Mon Prof Augmenté
Antennae Touching
Age 17 · Animals
Ants tap each other’s heads with their antennae. The antennae pick up chemical signals that tell one ant whether another belongs to its colony and what role it has.
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In the picture
- Tip of one ant’s antenna: samples chemical traces on the other ant’s head.
- Tip of the other ant’s antenna: samples chemical traces in return.
- Base of the first antenna: joins the head and passes sensory input inward.
- Base of the other antenna: joins the head and passes sensory input inward.
Examples
- A worker ant returning to the nest touches antennae with a guard at the entrance.
- Two ants from different colonies may react differently after their antennae make contact.
Key takeaways
- Antennae are the main chemical sense organs on an ant’s head.
- Brief antenna-to-antenna contact can carry information about colony identity and role.
Quiz: Antennae Touching (Age 17)
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According to the card, what are an ant’s antennae mainly used as?
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What can a brief antenna-to-antenna contact tell one ant about another?
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When an ant taps another ant’s head, what does the tip of its antenna do?
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