An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and jointed appendages. Arthropods form the phylum Arthropoda, which includes the insects, arachnids, myriapods, and crustaceans.
The Mallard Duck or Wild
Duck is a dabbling duck. It is
a medium-sized waterfowl
species that is often slight
ly heavier than most other
dabbling ducks.
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