div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=cuckows-eggshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Cuckows Eggs loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsnetreader035viewer2022080106575067821a28ab0f07abdb6dhtml5thumbnails1jpg width=140 height=200 divp© 1869 Nature Publishing Grouppdiv