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We often think of evolution happening over long time periods but that can be misleading especially in situations when long term events like climate change are responsible.
We often think of evolution happening over long time periods but that can be misleading especially in situations when long term events like climate change are responsible.
"North American migratory birds are becoming smaller as the planet warms due to climate change, a new study finds.
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"
So, what's causing birds to shrink, especially over such a relatively short time period? Scientists suspect that climate change is the most likely culprit, and birds are adapting accordingly.
"If you're a larger person and you're in a cold environment and let's say you have a very small friend, you will probably be able to withstand the cold a little bit better than a smaller person would," Youngflesh told Live Science. "This really comes down to surface area and volume. As a larger person, you'll be losing less heat than a smaller person. The same thing applies to birds."
It's unfortunate that some creationists' organizations, like Discovery Institute, AIG and Reasons to believe have built in denial that react in a variety of ways against the science.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"
So, what's causing birds to shrink, especially over such a relatively short time period? Scientists suspect that climate change is the most likely culprit, and birds are adapting accordingly.
"If you're a larger person and you're in a cold environment and let's say you have a very small friend, you will probably be able to withstand the cold a little bit better than a smaller person would," Youngflesh told Live Science. "This really comes down to surface area and volume. As a larger person, you'll be losing less heat than a smaller person. The same thing applies to birds."
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