A new study published in the journal *Mobile DNA* reveals that polar bears are undergoing genetic changes that may help them adapt to global warming. Researchers from the University of East Anglia analyzed blood samples from 17 polar bears in northeast and southeast Greenland and found increased activity of so-called 'jumping genes'—mobile DNA elements that influence other genes’ functions.
The study found that rising temperatures have dramatically boosted the activity of these genes in southeastern Greenland bears, altering genetic pathways linked to metabolism, thermal stress, and food processing. Lead researcher Dr. Alice Godden said the findings suggest a potential genetic blueprint for adaptation to warmer environments, though she cautioned that this does not eliminate extinction risks.
Scientists see the discovery as a sign of evolutionary resilience but stress that reducing carbon emissions remains crucial. Without slowing global warming, genetic adaptation alone may not be enough to secure the species’ survival through the century.
আন্তর্জাতিক ডেস্ক প্রকাশ : ২০ ডিসেম্বর ২০২৫, ১১: ২৯ আন্তর্জাতিক ডেস্ক জলবায়ু পরিবর্তনের ফলে মেরু ভালুকদের অস্তিত্বের জন্য অপরিহার্য বরফের আবাসস্থল ক্রমাগতভাবে ধ্বংস হয়ে যাচ্ছে। ক্রমবর্ধমান বৈশ্বিক উষ্ণতার সঙ্গে খাপ খাইয়ে নিতে মেরু ভালুকদের ডিএনএতেও
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