Tampa, FL Location
I have been diagnosed with paroxysmal supraventricular tachycardia. I have had 3 incidents since march 2012 that resolved without intervention. My cardiologist has reviewed prior echostress and done ultrasound or nonstress echo and cleared to dive. I have made 3 dive trips without incident.I am very pleased with my doctor but they are not a dive specialist. What is DAN's recommendation with respect to diving with PSVT. Click here to see the answer!
I cannot find any information regarding my specific concern. I know women should not dive once they are pregnant but what about if you are trying to become pregnant? Click here to see the answer!
Any adversity or cautions needed when diving with polycythemia vera (increased red blood cells and elevated o2 levels that could be present in blood prior to diving nitrox and 100% o2 for decompression, even at depths of less than 20 feet). Thank you. Click here to see the answer!

Entries in camouflage (1)

Sunday
Aug072011

Come Out, Come Out Wherever You Are

Last Friday's,  August 5th,  edition of "Science Friday" highlighted cephalopods - squids, cuttlefish and octopus.

Divers know that octopus can sometimes be elusive critters especially when a new diver wants to see one but this must see video might surprise you on just how well they can blend in with their surroundings. Not only do cephalopods have the ability to change colors and patterns but they can change texture as well making them truly masters of camouflage.

Dr. Roger Hanlon, marine biologist with Woods Hole , has captured some amazing videos over the years documenting this behavior.

So, that next dive when you get the feeling your being watched - it's probably just a cephalopod keeping an eye on you.

The video is from Science Friday's website with music credit to DjCode, video courtesy of Roger Hanlon and produced by Flora Lichtman