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An insect known as the pigeon horntail (Tremex columba) deposits its eggs, by means of a strong, piercing ovipositor, half an inch deep in the trunk wood of growing trees. Female uses ovipositor to bore through bark into wood, depositing 1 slender egg in each hole. Eggs are covered with fungal spores from a special pocket in female's abdomen. After depositing the last egg, the female often dies without removing its ovipositor from the wood. The dead female becomes food for some insectivorous animal.

Pigeon Horntail

An insect known as the pigeon horntail (Tremex columba) deposits its eggs, by means of a strong, piercing…