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Dec. 21, 2020 A study of more than 1,400 protein-coding genes of fleas has resolved one of the longest standing mysteries in the evolution of insects, reordering their placement in the tree of life and pinpointing ...
Dec. 15, 2022 Mathematical modeling reveals how fleas with early-stage Yersinia pestis infections are insufficient to drive epizootic outbreaks but can help promote a low level of enzootic ...
Sep. 20, 2021 Biologists sized up an unlikely natural phenomenon: when parasitism actually causes the number of hosts to increase, an effect known as a hydra effect. A study of common water fleas and their fungal ...
Dec. 4, 2023 Researchers have found the earliest-known fossil mosquito in Lower Cretaceous amber from Lebanon. What's more, the well-preserved insects are two males of the same species with piercing ...
Dec. 11, 2020 Researchers resurrected the preserved eggs of a shrimp-like crustacean to examine long-standing questions about adaptive ...
Sep. 25, 2023 Tiny waterfleas could play a pivotal role in removing persistent chemical pollutants from wastewater -- making it safe to use in factories, farms and homes, a new study ...
Feb. 10, 2022 A new study has shown that the effects of pollutants can be transmitted over many generations in water fleas and may persist long enough to influence the evolutionary process. The research adds new ...
July 13, 2022 Fleas are only a few millimeters in size. But they do have a whole arsenal of defenses -- even against aggressive ...
July 19, 2023 Prey size and risk of predation are strongly related to the medium-sized Daphnia -- a small, planktonic crustacean -- targeted by aquatic insects and fish. This phenotypic plasticity has been shown ...
Jan. 26, 2022 The freshwater aquatic larvae of the Chaoborus midge are the world's only truly planktonic insects, regulating their buoyancy using two pairs of internal air-filled sacs, one in the thorax and ...