title: Function of shell structures of pig louse and how egg maintains a low equilibrium temperature in direct sunlight.
mesh_terms: D000818:Animals; D004528:Egg Shell / Q000648:ultrastructure; D008003:Phthiraptera / Q000502:physiology* / Q000648:ultrastructure; D013472:Sunlight; D013552:Swine / Q000469:parasitology; D013696:Temperature