As conceived by Charles Darwin in the 1800s, evolution is a slow, gradual process during which species adaptations are inherited incrementally over generations. However, today biologists can see how evolutionary changes unfold ...
Evolution
Nov 9, 2023
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30
Since the HMS Beagle arrived in the Galapagos with Charles Darwin to meet a fateful family of finches, ecologists have struggled to understand a particularly perplexing question: Why is there a ridiculous abundance of species ...
Evolution
Oct 24, 2023
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28
Sharks have been populating the oceans for about 400 to 500 million years. While our planet and many of its inhabitants have undergone massive changes several times during this period, this basal group of vertebrates has ...
Plants & Animals
Oct 23, 2023
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196
Humans and wildlife, including large carnivores, interact at an unprecedented scale as they increasingly share the world's landscapes. A new University of Michigan-led study of human-lion interactions found that lions tend ...
Plants & Animals
Oct 17, 2023
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49
Scientists show that the extraordinary diversity of cichlid fish in Africa's Lake Victoria was made possible by "genetic recycling"—repeated cycles of new species appearing and rapidly adapting to different roles in the ...
Evolution
Sep 29, 2023
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202
Despite inbreeding and limited genetic diversity, the Svalbard reindeer has managed to adapt to extreme living conditions in record time—what researchers call a genetic paradox. But can they survive climate change?
Plants & Animals
Sep 26, 2023
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46
A team of ecologists and evolutionary biologists at the University of Lausanne, Switzerland, has found that some normally asexual species of stick insects, which are known to reproduce via parthenogenesis, occasionally mate ...
Climate change is causing extinctions at an increasing rate, a new study by the University of Arizona researchers shows. They surveyed populations of the Yarrow's spiny lizard in 18 mountain ranges in southeastern Arizona ...
Plants & Animals
Sep 18, 2023
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108
Researchers at the State University of Campinas (UNICAMP) in Brazil, in collaboration with colleagues at Harvard University in the United States, conducted an innovative study of the DNA and population dynamics of Saccharomyces ...
Cell & Microbiology
Aug 30, 2023
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2
Coronary arteries are a vital part of the human heart, providing it with oxygen-rich blood so that it can work. By comparing the hearts of mammals, birds, reptiles, fish and frogs, a multi-institutional team of researchers ...
Evolution
Aug 22, 2023
0
9
