Did you know? I did not :-) #TIL

My ranslation:

"Why you should give your dog a blue toy instead of red:

dogs don't really [notice? see?] other colours than blue and yellow and green.

Green is observed as yellow. So finding a tennis ball in grass is hard.

!"

nostr:npub1f9al9an68ntfawx5ad8jy9jf3khcpu6k6hac3ynrp57nfqdudq3s2rqyju https://earthstream.social/@LittleSteps2B/110836969492822911