Quirks And Quarks Complete Show From Cbc Radio

Old canned salmon provides a record of parasite infectionTo study marine ecosystems from the past, scientists picked through canned salmon dating back more than four decades to measure levels of parasites in the fish. Natalie Mastick, a postdoctoral researcher in marine ecology at Yale University, said she found the parasite load in two species of salmon increased in their samples between 1979 - 2021. She says this suggests their ecosystems provided more of the hosts the parasites needed, including marine mammals, which could reflect an increasingly healthy ecosystem. Their study is in the journal Ecology and Evolution. Mars has more influence on Earth than non-astrologers might have thoughtMars is, on average, about 225 million km from Earth, which would suggest that it has little impact on our planet. Which is true, but as they say a little goes a long way. In a recent study in Nature Communications, researchers studying the history of deep ocean currents found a surprising 2.4-million-year cycle where