funny@lemmus.org to Ask Lemmy@lemmy.world · 11 months agoWhy is such a tunnel needed?media.mas.toimagemessage-square128fedilinkarrow-up1766arrow-down146file-text
arrow-up1720arrow-down1imageWhy is such a tunnel needed?media.mas.tofunny@lemmus.org to Ask Lemmy@lemmy.world · 11 months agomessage-square128fedilinkfile-text
I found such a photo on the Internet and became interested in what function such a structure could perform.
Nice beaver