Interestingly, when there is an Ice Age, much of the world’s water freezes, but does not melt. (Don’t ask why; We don’t know.) All that frozen water means there is less to fill the usual seas. So We can proceed from one part of the globe to another without either a boat or snorkeling equipment. No troublesome water, often for a Long Time.

You see here the happy Woolly Rhino, having gone from the mainland (A) to the island across the way (B). No wet ankles, just a whole new turf for investigation.

By the way, humans made many of the same trips as We did, following in our footsteps. Trailblazing, very Inner Rhino.

We have seen a lot of interesting places during the cycles of Ice Ages, which are always coming and going, as it turns out. That said, when things warm up and sea levels rise, We have been stranded in some picturesque locales. Curiosity is a mixed blessing, say We.

One wrinkle: Ice Ages are chilly, as you might expect from the title.