In the middle of “an” ice age? You mean there was more than one?
From the standpoint of the uniformitarian view, there have been five — the current one has lasted 2.6 million years so far, during which time the continental shelves have been dry land most of that time. We’ve been in a warmer period for the past 8 to 12 thousand years.
[snip] Scientists have recorded five significant ice ages throughout the Earth’s history: the Huronian (2.4-2.1 billion years ago), Cryogenian (850-635 million years ago), Andean-Saharan (460-430 mya), Karoo (360-260 mya) and Quaternary (2.6 mya-present). [/snip]
https://www.history.com/topics/pre-history/ice-age