Dolphins and whales give themselves names

Scientists have known for a while that bottlenose dolphins give themselves "names"--unique whistles they use to identify themselves and each other.  Now it's thought that sperm whales might be doing the same, using sonar clicks as personal identifiers.

Read here in the U.K.'s The Sunday Times about scientists who suggest that dolphins should be considered "non-human persons."

Do you agree?

Here's a dolphin I once knew. We called her Rosie--
now I wonder what she called herself.
(Photo from http://rosmarus.com/Releases/Rel_1.htm)