holmes writes:
I assume you are just joking...
Not really. As I said, ice ages are one topic that I've really never given a great deal of thought. As such, I'm sure I have
many misconceptions about them.
Don't get me wrong, I didn't think that the Earth literally "froze solid" all the way through, like a round ice cube out of the freezer. I'm not
that naive.
I figured there were probably active oceans
under the ice, and of course all the usual geological and seismic activity, but as far as the Earth's
surface goes, I thought the ice was pretty much everywhere. I was surprised, for example, to learn that there were oceans that weren't frozen over.
In retrospect, I don't know how I thought life could survive an
entirely frozen environment. If I'd given it more than a cursory thought I may have considered that, but I've never looked into it. Always learning something new on these forums I am.