div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=intensity-of-aggression-in-the-crayfish-orconectes-virilis-hagenhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Intensity of Aggression in the Crayfish Orconectes virilis Hagen loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer2022080321575068401a28ab0f07af4cfehtml5thumbnails1jpg width=140 height=200 divp© 1970 Nature Publishing Grouppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=intensity-of-aggression-in-the-crayfish-orconectes-virilis-hagenhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: Intensity of Aggression in the Crayfish Orconectes virilis Hagen loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer2022080321575068401a28ab0f07af4cfehtml5thumbnails2jpg width=140 height=200 divp© 1970 Nature Publishing Grouppdiv