lakes

In the late 1950s and early 1960s, Nile perch were introduced into Lake Victoria to improve fisheries; decades later the predator was linked to the loss of many native cichlids and transformation of the lake’s fishery

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In the late 1950s and early 1960s, Nile perch were introduced into Lake Victoria to improve fisheries; decades later the predator was linked to the loss of many native cichlids and transformation of the lake’s fishery

Nile PerchPhoto: Wikipedia In the late 1950s and early 1960s, Nile perch were introduced into Lake Victoria with the hope that the large predatory fish would strengthen local fisheries. The decision was intended to create new commercial opportunities and increase the supply of valuable fish. Instead, the species spread through one of the world’s largest … Read more

In 2001, California began removing non-native trout from high-Sierra lakes; by 2011 nearly 44,000 fish were removed from 19 lakes, as frogs in three restoration lakes rose from about 190 to over 18,800

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In 2001, California began removing non-native trout from high-Sierra lakes; by 2011 nearly 44,000 fish were removed from 19 lakes, as frogs in three restoration lakes rose from about 190 to over 18,800

High in California’s Sierra Nevada, a conservation project changed the future of a disappearing amphibian. In 2001, staff at Sequoia and Kings Canyon National Parks began removing non-native trout from selected lakes and streams, restoring water bodies that had historically been home to mountain yellow-legged frogs but were naturally fishless. By 2011, nearly 44,000 trout … Read more

From 1915 to 1972, Mount Rainier stocked more than 9 million fish into naturally fishless waters; today 35 mountain lakes still hold breeding non-native populations that displace amphibians and alter ecosystems

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From 1915 to 1972, Mount Rainier stocked more than 9 million fish into naturally fishless waters; today 35 mountain lakes still hold breeding non-native populations that displace amphibians and alter ecosystems

View of the Ohanapecosh River and predated Northwestern Salamanders (Ambrystoma gracile) eaten by introduced trout. Mount Rainier’s glaciers and snowfields feed a magnificent system of icy streams and mountain lakes. On the surface, these waters look pristine, scattered pools in one of America’s most iconic landscapes. But beneath the surface, scientists are looking at a … Read more

55,000 years ago, Neanderthals may have trekked deep into Saudi Arabia when Nefud Desert was covered by lakes and grasslands

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55,000 years ago, Neanderthals may have trekked deep into Saudi Arabia when Nefud Desert was covered by lakes and grasslands

Representative Image of Neanderthals exploring a lush Arabian landscape with ancient lakes and wildlife (AI-generated image) A new study suggests Neanderthals may have trekked far deeper into the Arabian Peninsula than scientists previously thought possible, reaching a lakeside site in what is now Saudi Arabia around 55,000 years ago. Researchers examined stone tools from Jebel … Read more