Fake news, unfortunately.Don Carlos wrote:
I missed this...very excellent
The canals are looking clean because less boats go through it. Normally boats kick up dust in the water. The fish are always there, they're just harder to see. The swans are common visitors of a district in Venice.
The girl who owns the Twitter account has admitted to not knowing the exact details about the pictures but has stated in an interview that she's not removing the tweet because it's her personal best in number of likes.
Edit: source https://www.nationalgeographic.com/anim ... dia-posts/
Edit2: I was slightly off about the swans. They are from Venice but are a common sight in that area