Species specificity, as a biological process, refers to the selective interaction, compatibility, or functional activity of biological molecules, cells, or pathogens with organisms of particular species, arising from co-evolved structural and regulatory determinants. It encompasses mechanisms such as species-restricted receptor–ligand recognition, host-range determinants in pathogens, species-dependent expression or sequence variants of target proteins, and immune recognition constraints that limit cross-species functionality. Species specificity thus governs processes like host tropism, cross-species transmission barriers, xenogeneic incompatibilities, and the species-selective efficacy or toxicity of biomolecules, ultimately shaping interspecies boundaries in infection, signaling, and physiological regulation.
A study of the genetic basis of plague immunity in prairie dogs has broad implications for conservation. From white-nose syndrome in bats to avian malaria in Hawaiian birds, introduced pathogens are a major cause of population ...
Plants & Animals
Jul 8, 2025
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A team of molecular and cellular chemists and biologists from Harvard University and the University of California, San Diego, has found that at least one type of octopus has taste sensors on its sucker cups that allow it ...
Researchers from the University of Adelaide, in collaboration with the University of Melbourne, University of Queensland and Monash University, have discovered that the genetic mechanism that determines sex in monotremes ...
Plants & Animals
Jun 11, 2025
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Researchers at FHAIVE (Finnish Hub for Development and Validation of Integrated Approaches), Tampere University, have discovered a new response mechanism specific to exposure to nanoparticles that is common to multiple species.
Bio & Medicine
May 9, 2023
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