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Daphnia pulex is the most common species of water flea. [3] It has a cosmopolitan distribution : the species is found throughout the Americas, Europe, and Australia. [ 4 ] It is a model species , and was the first crustacean to have its genome sequenced.
Their legs are long, the hind pair well adapted for jumping; a flea can jump vertically up to 18 centimetres (7 inches) and horizontally up to 33 cm (13 in), [5] making the flea one of the best jumpers of all known animals (relative to body size), second only to the froghopper. A flea can jump 60 times its length in height and 110 times its ...
Daphnia is a genus of small planktonic crustaceans, 0.2–6.0 mm (0.01–0.24 in) in length. Daphnia are members of the order Anomopoda, and are one of the several small aquatic crustaceans commonly called water fleas because their saltatory swimming style resembles the movements of fleas.
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Don't let fleas take over your house. Follow these expert tips on how to get rid of fleas on pets (dogs included!), furniture, bedding and even in your yard.
The most infamous flea-to-human transmitted disease is the bubonic plague, which was caused by the bacterium Yersinia pestis.
The migration occurs when organisms move up to the uppermost layer of the water at night and return to the bottom of the daylight zone of the oceans or to the dense, bottom layer of lakes during the day. [2] DVM is important to the functioning of deep-sea food webs and the biologically-driven sequestration of carbon. [3]
Daphnia magna is a typical water flea of the genus Daphnia. The females reach up to 5 mm in size, the males about 2 mm, thus they are among the largest species in the genus. [2] The body is protected by a translucent carapace made of chitin, a transparent polysaccharide. [3]