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.
The average person takes thousands of steps each day, instinctively walking heel-to-toe. Although they hardly register them, those consistent heel-first strides are more distinctive to humans than previously thought and allowed ...
Evolution
Sep 7, 2026
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345
For most mammals, cold suppresses neural activity and diminishes the sense of touch. But the thirteen-lined ground squirrel can detect touch in conditions as low as 4°C (39°F), about as cold as the inside of a refrigerator, ...
Plants & Animals
Sep 4, 2026
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11
On the windswept coasts of Oregon and California lives an unassuming little plant that can withstand salty blasts that kill its inland counterparts. It's called the yellow monkeyflower. Now, researchers are beginning to understand ...
Plants & Animals
Sep 3, 2026
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32
The pigments that give beets their red color may have helped a major group of flowering plants repeatedly adapt to dry environments, setting the stage for the evolution of traits that allowed plants to adapt to some of the ...
Plants & Animals
Sep 3, 2026
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9
Global temperature rise is set to cross 1.5°C, likely within the next few years, pushing climate risks and impacts to increasingly dangerous heights. But it is still possible to bring temperatures down and achieve the global ...
Environment
Sep 2, 2026
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14
An international team of more than 100 scientists has taken a major step toward unlocking the secrets of some of Earth's tiniest but most important organisms.
Cell & Microbiology
Sep 1, 2026
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14
Atlantic herring travel in massive schools that can contain hundreds of millions—and sometimes even billions—of fish. While this abundance is characteristic of one of the most successful vertebrates on Earth, it also creates ...
Plants & Animals
Aug 31, 2026
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15
How has offspring dependence on parents evolved over the course of evolution? Researchers at the University of Bayreuth, in collaboration with Kyoto University, Japan, have investigated one possible mechanism by studying ...
Evolution
Aug 27, 2026
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14
While a colleague traveled along the East Coast from Canada to the Gulf of Mexico collecting oysters, Northeastern University bioinformatics graduate student Megha Prasad worked away at her computer. She zeroed in on DNA, ...
Ecology
Aug 27, 2026
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7
As climate change drives more frequent and intense heat waves, plants face growing challenges to survive and remain productive. Researchers at VIB, Ghent University, KU Leuven and their international collaborators have uncovered ...
Plants & Animals
Aug 26, 2026
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