Biological adaptation is the evolutionary process through which heritable traits that enhance an organism’s fitness become more prevalent in a population over generations under specific environmental conditions. It operates primarily via natural selection acting on genetic variation, including mutations, recombination, and gene flow, and is constrained by developmental, genetic, and phylogenetic factors. Adaptations can be morphological, physiological, or behavioral and are typically characterized by increased survival or reproductive success in a given niche. The process is dynamic and context-dependent, such that traits advantageous in one environment may be neutral or deleterious in another, contributing to diversification and speciation.
March's record heat made it the most abnormally warm month in recorded U.S. history, bringing plants into bloom early and coaxing animals out of their winter hiding places ahead of schedule. Among the creatures making an ...
Plants & Animals
Apr 23, 2026
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Research into human genomic diversity has a number of applications in biomedicine, evolution, and history. However, many populations have historically been underrepresented on the human genomic map. This is the case of Native ...
Evolution
Apr 22, 2026
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Researchers at NYU Abu Dhabi, in collaboration with international partners, have uncovered new insights into how apples became the fruits we know today, showing that their evolution has been shaped by continuous exchange ...
Evolution
Apr 22, 2026
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A new study comparing invasive cane toads in Japan and Australia has found substantial changes in body size and shape have developed much more rapidly than suggested by long-held ideas of the pace of evolution. Researchers ...
Plants & Animals
Apr 21, 2026
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Whether you've sought them out or not, you've probably encountered parenting content creators on social media at some point in the last two decades.
Plants & Animals
Apr 21, 2026
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Penguins may look charmingly awkward on land, but new research shows their bodies are finely tuned for powerful, efficient movement both on land and underwater. A team of anatomists from Midwestern University, in collaboration ...
Plants & Animals
Apr 21, 2026
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Bruce the kea is missing his entire upper beak. Yet he is the alpha bird of his circus (the apt collective noun for a group of New Zealand's famously playful alpine parrots).
Plants & Animals
Apr 21, 2026
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On Earth, people grip objects to ensure they don't fall. In space, this process changes: When astronauts hold an object without moving it and then let go, the object doesn't fall because there is no gravity. But when astronauts ...
Space Exploration
Apr 20, 2026
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A study reported in Current Biology shows how physical disabilities in the animal world can be overcome through behavioral innovation. The report features an endangered kea parrot in captivity at New Zealand's Willowbank ...
Plants & Animals
Apr 20, 2026
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Along the stark and shimmering coastline of the Dead Sea, where desert cliffs meet one of the world's most extreme environments, a quiet drama is unfolding in the skies above. Fan-tailed ravens, intelligent, adaptable, and ...
Plants & Animals
Apr 18, 2026
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