div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=variations-in-gestation-length-of-mink-mustela-visonhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Variations in Gestation Length of Mink Mustela vison loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsusreader035viewer2022080107575068321a28ab0f07af0c67html5thumbnails1jpg width=140 height=200 divp© Nature Publishing Group1966pdiv