This smoke ring was formed by one of the biggest creatures on Earth. Scientists say it has never been documented before | Discover Wildlife
It’s the first time humpback whales have been observed creating stable bubble rings during friendly interactions with humans, such as approaching swimmers or boats, say the researchers, who suggest that these floating rings, which resemble the smoke rings blown by humans, may represent a novel form of non-human expression or curiosity.
The discovery could help in the search for intelligent life beyond Earth, suggest the Search for Extraterrestrial Intelligence (SETI) Institute and University of California researchers. The findings were published recently in the journal Marine Mammal Science.
Weird but cool.