Oh yeah. There's freeze dried penguins (birds) and seals (mammals) in the Dry Valleys 60 miles inland West from McMurdo. It's one of the things to helo by when one gets over there (I never did, but friends did). Embedded in the ice: no. read more
The superficial answer is yes, since there are mammals like penguins who live nearby, and some of them get entombed in the ice. But if you meant prehistoric animals preserved in ice - maybe, but they are likely buried pretty deeply, since the antarctic has been frozen for millions of years. read more
Thousands of Microbe Species Live in This Buried Antarctic Lake Drilling through half a mile of ice let scientists uncover the first solid evidence of life in a subglacial lake Scientists observed the view down the borehole via a computer at the surface as they drilled into the Antarctic ice to reach Lake Whillans. read more