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The infected fleas feed on rodent vectors of this bacterium, such as the black rat, Rattus rattus, and then infect human populations with the plague, as has happened repeatedly from ancient times, as in the Plague of Justinian in 541–542. [46] Outbreaks killed up to 200 million people across Europe between 1346 and 1671. [47]
The adults are roughly 1.5 to 4 mm in length and are laterally flattened. They are dark brown in color, are wingless, and have piercing-sucking mouthparts that aid in feeding on the host's blood. Both genal and pronotal combs are absent and the adult flea has a rounded head. Most fleas are distributed in the egg, larval, or pupal stages.
Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".
Although fleas cannot fly, they have developed powerful legs and are famous for being able to jump quite high in proportion to their tiny bodies — more than 100 times their body length, up to a ...
Tungiasis is strictly caused by chigoe fleas (the term transmission does not apply because Tunga penetrans is itself responsible for the disease.) The preponderance of tungiasis lesions on the toes may be because chigoe flea is a poor jumper, attaining only a height of 20 cm. [ 14 ] But the reality is more complex; for example, the jumping ...
GIF animation of an Apollonian sphere packing with transparent background. Transparency in computer graphics is possible in a number of file formats.The term "transparency" is used in various ways by different people, but at its simplest there is "full transparency" i.e. something that is completely invisible.
Tunga penetrans is a species of flea also known as the jigger, jigger flea, chigoe, chigo, chigoe flea, chigo flea, nigua, sand flea, or burrowing flea.It is a parasitic insect found in most tropical and sub-tropical climates.
Selena Gomez. Selena Gomez just proved Rare Beauty's power with a simple set of selfies.. Ahead of Christmas, the 31-year-old singer and actress gifted fans a series of sweet selfies showing off ...