Glad I'm not a whale

I heard a story on All Things Considered this afternoon that baby Orca whales and baby bottlenose dolphins do not sleep at all in their first year of life, and neither do their mothers. (Story kicker? Their fathers' sleep patterns don't change.) Researchers think it may be because they are born into ice cold water with relatively little blubber, and also have to swim constantly to keep away from predators. It is amazing how animals (including humans) have adapted over the years...and even over the months. I remember (or, to be more accurate, I DON'T remember) that during the first month or so of DOM's existence I was bone tired, despondent, and barely functional. However, as the months wore on, I actually got used to waking up several times a night. Of course, now that I've been able to sleep through the night for a couple of years, the thought of regular night wakings sends a shudder down my spine - now one of the many reasons DOM will not be joined by a sibling.