Science Source Feb 2010
EN_90286490_0760
![Science Source Feb 2010](img/medium/arch1/dvd0113/36/EN_90286490_0760.jpg)
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).
2010-02-13
EAST NEWS
Science Source
Edward Kinsman
bj5925
0,52MB
28cm x 37cm by 300dpi
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