DNA damage can be caused by a number of intrinsic and extrinsic factors. A recent study showed that free-living house sparrows (Passer domesticus) have higher DNA damage in the summer than the winter across five different tissues. This result was consistent when house sparrows were brought into captivity and exposed to comparable light cycles. with all other variables held constant. https://smokeysmountainfurnitureoutlets.shop/product-category/outdoor-pub-table/