This lab is right by my house and I was at this dissertation defense.
Fascinating material.
http://www.bbc.co.uk/nature/17460618
Some of the stuff that came out during the q&a session was really cool.
One analogy they used was that data wise, the US Navy's best sonar is equivalent to AM radio, whereas Kina's echolocation is like broadband internet.
They insisted this was not hyperbole.
It was a Navy research animal after all, they should know.
This is her "retirement" job.
Being that the bay is very noisy (we have these super-noisy, clicking shrimp here) her (Kina, the whale) hearing deteriorated over the years.
What they found was she somehow accounted for this by lowering the pitch for the entire range she used.
As the hearing loss was all in the upper register, she maintained the same amount of range/data capability.
Some of the aluminum test cylinders they used cannot be distinguished by human eye or hand.
They use a micrometer!
Acoustics of clicking shrimp here:
http://asa.scitation.org/doi/10.1121/1.415805
Dr Kloepper's work:
https://scholar.google.com/citations?user=IFXytWsAAAAJ&hl=en
That's amazing I'll read it properly when sober, I have bats in my house and their echolocation is astounding they do loops round you if you get in their way. They also poo on my tools.
(more squidtalk) Mrs Stigbob got me membership of the Natural History Museum as a present a few ago, and as members we got to visit the Darwin rooms were they keep the pickled stuff. I was lucky enough to see the pickled architeuthis (giant squid) they have in a purpose built tank there about 20 feet long IIRC, if I can find a photo without faces I'll upload it.