Lice Lack Livers

Diagram of a Human Louse
Illustration: Robert Hooke, Micrographia

Insects do not have an organ equivalent to the human liver, a center of energy storage (glycogen) and metabolism. These functions in insects are predominantly performed by a disorganized tissue called “fat body”. In 1665, Robert Hooke turned his microscope to study insects and insect structures which he published in “Micrographia”*. In his study of the human louse (an easily collected insect at the time) Hooke described…

Source: Living With Insects Blog

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