From the article:
> "They can “see” from pictures of sheep that they are in fact white."
Indeed, as as we know, all swans are white too.
> "They can “see” from pictures of sheep that they are in fact white."
Indeed, as as we know, all swans are white too.
Not all sheep are white.
It is not correct to say:
All sheep are not white.
Your comment could be taken to mean the second.