I may have an opportunity to do some infrared on the Navy's dolphins and seals that are used for underwater warfare. My question is; Has anyone out there been involved with IR on marine mammals? I would like to get as much information I can find if possible.

I have seen several published papers on the subject. Check the archives of the infrared conferences -- ITC, Snell, Thermosense, IRInfo. I have also seen stuff on the web -- use google. You can also go directly to some of the marine aquaria - whether commercial, like Busch, or general, like the NY Aquarium.
Jack

Do they detect hot blood mammals' movement using thermography because sonar cannot detect them?

Here is an Infrared image of an elephant

Terry O