Amazon birds are shrinking as the climate warms, prompting warning from scientists
A new study examined 77 bird species in the Amazon over a 40-year period. It found they were rapidly evolving due to rising temperatures because smaller birds shed heat more efficiently.
Scientists have found something strange has been happening among sensitive bird species in the Brazilian Amazon in recent years.
Not only were the birds declining in number, but their bodies were also shrinking in size.
"We found
