"Cool" is finding out that dolphins are among the handful of species on Earth that can recognize themselves in the mirror. "Cooler" is finding out that dolphins "name" themselves from a young age with a signature whistle used to signal their identity to other dolphins.
- Reposted by
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
