div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer2022020522575067841a28ab0f07abe617html5page1jpg target=_blank img data-url=on-the-retention-and-colouring-of-eggs-and-the-protective-mimicry-of-soundshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: On the Retention and Colouring of Eggs and the Protective Mimicry of Sounds loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer2022020522575067841a28ab0f07abe617html5thumbnails1jpg width=140 height=200 adivp©1872 Nature Publishing Grouppdiv
