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News
Human sperm carry a hidden source of genetic diversity
1+ week, 6+ day ago (703+ words) expected, revealing a previously overlooked source of human genetic diversity. Every child inherits a genome...recombination. Scientists have generally assumed most of that shuffling happens at one specific stage of sperm development. New research suggests they’ve been missing part of…...
Boat noise makes humpback whale songs up to 45 percent less likely to be detected
1+ week, 6+ day ago (896+ words) yearlong monitoring project show that the presence of vessel noise reduced the probability of recording whale songs by roughly 40 to 45 percent....Researchers identified sound activity in 59.2 percent of rainy-season recordings, compared with 28.1 percent...difference was linked mainly to a greater…...
Motorboat noise leaves a lasting mark on young reef fish
1+ week, 6+ day ago (999+ words) effects on young reef fish. Coral reefs are full of sound. Young fish grow up hearing that natural chorus...mixed reef sounds with three to six 20-minute periods of boat noise each day. The experiment included eggs...entered different groups,…...
Dolphins hunt with sound, but their prey may be listening back
2+ week, 6+ day ago (845+ words) listening for danger too. Dolphins live inside a world of sound. Whistles carry the social chatter, while bursts of rapid clicks work like sonar, sweeping the water...make noise. Sorting out a dolphin’s voice from all of it usually means…...