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Anostracans swim gracefully by movements of their phyllopodia (thoracic appendages) in a [[metachronal rhythm]].<ref name="Pennak"/> When swimming, the animal's ventral side is normally uppermost (often described as swimming "upside-down").<ref name="Belk"/> They [[filter feeder|filter food]] indiscriminately from the water as they swim, but also scrape algae and other organic materials from solid surfaces, for which they turn to have their ventral side against the food surface.<ref name="Belk"/>
Another important aspect of the fairy shrimp’s life cycle is their universal ability to enter diapause,<ref name=":0">{{Cite journal|last=Hairston|first=Nelson G.|last2=Cáceres|first2=Carla E.|date=1996-03-01|title=Distribution of crustacean diapause: micro- and macroevolutionary pattern and process|url=https://link.springer.com/article/10.1007/BF00016802|journal=Hydrobiologia|language=en|volume=320|issue=1-3|pages=27–44|doi=10.1007/bf00016802|issn=0018-8158}}</ref><ref name=":1">{{Cite journal|last=Fryer|first=Geoffrey|date=1996-03-01|title=Diapause, a potent force in the evolution of freshwater crustaceans|url=https://link.springer.com/article/10.1007/BF00016800|journal=Hydrobiologia|language=en|volume=320|issue=1-3|pages=1–14|doi=10.1007/bf00016800|issn=0018-8158}}</ref> a state of biological dormancy where growth and metabolism are arrested,<ref name=":2">{{Cite journal|last=Alekseev|first=Victor R.|last2=Starobogatov|first2=Yaroslav I.|date=1996-03-01|title=Types of diapause in Crustacea: definitions, distribution, evolution|url=https://link.springer.com/article/10.1007/BF00016801|journal=Hydrobiologia|language=en|volume=320|issue=1-3|pages=15–26|doi=10.1007/bf00016801|issn=0018-8158}}</ref> as an egg (or cyst). This trait assists in both species dispersal and in overcoming adverse environmental conditions.<ref name=":1" /><ref name=":2" /> Once dormant, these cysts can withstand conditions as harsh and diverse as droughts, frosts,
Anostracans are an important food source for many birds and fish. For example, they provide much of the food for female [[Northern pintail|pintails]] and [[mallard]]s in the [[Prairie Pothole Region]] of the [[Great Plains]] in [[North America]], especially in years when temporary wetlands are abundant.<ref name="Batt">{{cite book |editor=Bruce D. J. Batt |year=1992 |title=Ecology and Management of Breeding Waterfowl |chapter=Foraging ecology and nutrition |author1=Gary L. Krapu |author2=Kenneth J. Reinecke |pages=1–29 |publisher=[[University of Minnesota Press]] |isbn=978-0-8166-2001-2 |url=https://books.google.com/books?id=MroyihsZQoIC&pg=PA9}}</ref> Similarly, ''[[Artemia]]'' forms an important part of the diet of [[flamingo]]s wherever it can be found.<ref>{{cite book |editor1=Hans-Jörg Barth |editor2=Benno Böer |year=2002 |title=Sabkha Ecosystems, Volume 2 |series=Tasks for Vegetation science |publisher=[[Springer Science+Business Media|Springer]] |isbn=978-1-4020-0504-6 |chapter=Saline wetland reserve management: a case study from the United Arab Emirates |author1=Simon Aspinall |author2=Peter Hellyer |pages=335–340 |url=https://books.google.com/books?id=O7fIy_Rwgc8C&pg=PA338}}</ref>
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