Page 20: Research news on Adaptation, Biological

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.

Old plant populations offer new clues to climate resilience

When scientists think about how plants will respond to climate change, they often look north. As temperatures rise, many species are expected to shift their ranges toward cooler regions with a loss of populations in warmer ...

How a strange fruit fly became a bloodthirsty underwater hunter

A carnivorous fruit fly living in bubbling African streams may sound like a fever dream. However, with the help of DNA analysis of a pinned insect from a museum in Zurich, researchers have managed to draw an evolutionary ...

How evolution sculpts the facial shapes of birds and mammals

Shapes of beaks and snouts come in an extraordinary range of forms, reflecting adaptations to different lifestyles and environments. Yet beneath this diversity lies a paradox: across birds and mammals, faces are built using ...

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