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Sunday, 8 September 2019

An animal without a what?!

 Philip van den Berg 
Our in-house environmentalist, PHILIP VAN DEN BERG (U34), writes: In our village live animals without a mouth or an anus. They are called antlions.

These wonderful creatures live most of their lives underground in conical pits they make in dry, sandy areas.

Conical pits
At the bottom of the pit, buried in the sand, is this squab creature with its sharp, curved jaws. If an insect walks into one of these pits it will stumble down the loose, sandy sides.

Antlion in its pupal stage 
The antlion will immediately start squirting up sand resulting in the hapless victim sliding down into its formidable jaws. The antlion will then commence sucking out its body juices.

Because the antlion does not have an anus, all the metabolic waste generated is stored and eventually voided at the end of its pupal stage before its transformation into an adult insect resembling a dragonfly. As soon as the adult's wings are fully opened, it flies off in search of a mate.

Antlion in its transformed adult form

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