97 Off topic - but I thought this was amazing. A spider built a web on a woman's patio. She didn't see it and walked through it, ruining it. The next day the spider had already rebuilt it, but made outline markings so that she would see it. If this doesn't show high intelligence, I don't know what! (www.youtube.com) posted 258 days ago by CasuallyObservant 258 days ago by CasuallyObservant +97 / -0 23 comments share 23 comments share save hide report block hide replies
They might just be construction markers and he'll take them down once he's finished, it's not necessarily because of the human ;)