Transmitted Off Crossed Circular Polarized Light
KINGDOM: Animalia PHYLUM: Chordata CLASS: Aves ORDER: Anseriformes FAMILY: Anatidae SUBFAMILY: Anatinae GENUS: Anas SPECIES:
Significance in the Environment:
Duck down barbules are characterized by a few triangular nodes on the last third of the barbule followed by a few prong nodes. Goose down is
similar but there are typically more triangular nodes starting a little sooner on the barbule and the distance between nodes is greater.
Dove, Carla J. and Sandra L. Koch, "Microscopy of feathers: a practical guide for forensic feather identification", THE MICROSCOPE, vol. 59,
no. 2, pp. 51-71, 2011
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