There are many Antarctic sea creatures. Five of these amaizng creatures are an Antarctic octopus, sea Spiders, tunicates, marine woodlice, sea lemons. Also Polarbears are not sea animals but howver they od swim in the cold waters of Antarctica
penguins
Antarctic
Some sea creatures have ansetors of dinosaurs
If you mean, "are all under water creatures, sea creatures?" then no. The term SEA is for the ocean and there also can be creatures in freshwater. Also some creatures that live in water such as some snakes and sea turtles come out of the water every so often, so they are no total sea/water creatures. Fish are underwater creatures though.
"When taking a trip on an Antarctic Cruise these are some of the popular travel destinations: the Antarctic Peninsula, the Weddell Sea, and the Ross Sea region."
both because some sea creatures eat others. unlike cuttlefish they try to eat eachother.i hope this answers your question.
The Adélie Penguin is a type of penguin common along the entire Antarctic coast and Africa along its nearby islands. They consume Antarctic sea creatures, such as squid and krill.
antarctic seasthey live in the antarctic
some
You can find the Weddell Sea east of the Antarctic Peninsula.
These are only SOME of the sea creatures...: Pale octopus, Yeti cram, sea anemones, stalked barnacles and a seven-pronged starfish.
There are some pretty weird creatures living at the bottom of the sea, the most famous is the giant squid.