I remember this thread.

Eye without site, check this

[link to news.discovery.com]

In a scientific first, researchers have just reproduced what a dolphin saw as it encountered a male diver.

This “what the dolphin saw” image of the submerged man reveals that dolphin echolocation results in fairly detailed images. What’s more, it’s now thought that dolphins may share such images with each other as part of a previously unknown marine mammal language.