Researchers from the University of California, Los Angeles (UCLA) examined more than 30 years of data for adult male birds across 105 avian species that migrate through North America. They found that between 1989 and 2018 the birds' body masses declined by about 0.6% on average, according to an Oct. 27 study in the journal Nature Ecology and Evolution.
هذه القصة مأخوذة من طبعة January - February 2023 من Scientific India.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
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هذه القصة مأخوذة من طبعة January - February 2023 من Scientific India.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
بالفعل مشترك? تسجيل الدخول
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