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caption

SEM of a Porcupine Quill. This is a quill from a porcupine. (Erethizon dorsatum) The quill is designed to stick into the skin of a predator and not be easily removed. This is an effective defensive mechanism for the porcupine. False color Scanning Electron Micrograph (SEM).

headline Science Source Feb 2010

created date 2010-02-13

credit EAST NEWS

source Science Source

byline Edward Kinsman

original transmission reference bj5925

weight 0,52MB

size 28cm x 37cm by 300dpi

keywords - Show

AMERICAN, AN, AND, ANIMAL, ARROW, BARB, BARBED, BE, CANADIAN, COLOR, COMMON, DEFENSIVE, DESIGNED, DORSATUM, EASILY, EDWARD, EFFECTIVE, ELECTRON, ERETHIZON, ERETHIZONTIDAE, FALSE, FAUNA, FOR, FROM, INTO, IS, KINSMAN, MAMMAL, MECHANISM, MICROGRAPH, MICROGRAPHS, MICROSCOPY, NORTH, NOT, OF, PORCUPINE, PREDATOR, QUILL, REMOVED, RODENT, RODENTIA, SCANNING, SEM, SEMS, SKIN, SP, STICK, THE, THIS, TO,