A bird discovered in northeastern Siberia died during the last Ice Age and is providing a crucial glimpse into evolution and the effects of climate change
Share to twitterA bird discovered in northeastern Siberia died during the last Ice Age and is providing a crucial glimpse into evolution and the effects of climate changethat breeds across the northern hemisphere. It has 42 formally recognized subspecies that are divided into in six different clades, each of which could warrant reclassification into distinct species clusters.
This vast wide-open habitat is favored by horned larks, a species may have originated in northeastern Siberia during the middle Pleistocene before diverging into separate Eurasian and North American lineages. These small ground-nesting songbirds breed in the wide-open spaces of the high Arctic and above the tree line in mountains.
“This helps us understand how the diversity of subspecies evolves”, Dr Dussex said. In recognition of being the oldest bird yet unearthed from this time period, the researchers refer to her the ‘Icebird’. Analyzing the complete genomes of ‘Icebird’ and these other ancient specimens could provide a deeper understanding of the evolution of animals during the Pleistocene and of the impacts upon them from climate change.
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