DOLPHINS SAY THEIR NAMES

"Bottlenose dolphins appear to whistle their "names" to each other," according to a new study in the Proceedings of the National Academy of Sciences. Here's the best part: "Researchers say that this type of referential communication is extremely rare in nature, and until now had not been clearly shown in a non-human animal." LOL - how do we know this type of communication is "extremely rare" in nature when it was previously non-existent in dolphins? Wouldn't it be a wee tad more honest and accurate to say "scientists successfully decoding this type of animal-to-animal communication is extremely rare"?