We just learned about the Onyx River.
Another part of Antarctica is a Nunatak.
This is a rocky part of a mountain that sticks up out of a glacier.
Nunataks are important because many times they are the only place that plants and animals can live in cold places like Antarctica.
![nunatak](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/Starr_Nunatak-Antarctica.jpg/640px-Starr_Nunatak-Antarctica.jpg)
(from: wikipedia - nunatak)
Kid Facts - Blast from the past: Outworks