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Tigers face uncertain futures primarily due to habitat fragmentation, human-wildlife conflict, and poaching. As global tiger populations decline, so does their genetic diversity. But until now it’s been unclear how the animals’ dwindling numbers are affecting them at the genetic level. To find out, researchers sequenced 65 genomes from four of the surviving tiger subspecies. The findings confirm that strong genetic differences exist between different tiger subspecies but show, surprisingly, that these differences emerged relatively recently, as Earth underwent a major climatic shift and our own species grew increasingly dominant. “The increasing dominance of humans across the world means that our understanding of which attributes of species and populations are best suited to the Anthropocene becomes ever more important,” says Elizabeth Hadly, professor in environmental biology at Stanford University, referring to the proposed geological epoch marked by significant human im

Kellie armstrongStanford woods institute for the environmentStanford universityElizabeth hadlyStanford woods institutePleistocene ice ageRussian farStanford phdMolecular biologyஸ்டான்போர்ட் வூட்ஸ் நிறுவனம் க்கு தி சூழல்ஸ்டான்போர்ட் பல்கலைக்கழகம்ஸ்டான்போர்ட் வூட்ஸ் நிறுவனம்ரஷ்ய இதுவரைஸ்டான்போர்ட் ஃப்ட்மூலக்கூறு உயிரியல்