Human Head Louse vs New Caledonian Imperial Pigeon Louse

Side-by-side species comparison

Attribute Human Head Louse New Caledonian Imperial Pigeon Louse
Scientific Name Pediculus humanus capitis Columbicola extinctus
Order Phthiraptera Phthiraptera
Family Pediculidae Philopteridae
Size 2-3 mm 1-3 mm
Habitat Underground Underground
Diet Blood Feeders Parasites
Regions Europe, Asia, Africa, North America, South America, Oceania Oceania (New Caledonia)
Conservation Least Concern Extinct

Human Head Louse

An obligate ectoparasite of the human scalp that feeds on blood several times per day. It spreads through direct head-to-head contact.

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Did You Know?

Head lice have co-evolved with humans for millions of years, and DNA analysis of lice has helped trace ancient human migration patterns.

New Caledonian Imperial Pigeon Louse

A chewing louse that was endemic to the now-extinct New Caledonian lorikeet. This species represents the coextinction phenomenon where parasites disappear with their hosts. It highlights the hidden biodiversity loss that accompanies vertebrate extinctions.

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Did You Know?

For every bird or mammal that goes extinct, an average of two to three unique parasite species disappear with it, representing a massive hidden wave of coextinction.