If you dont have fur armor and want to tame/kill some of these, then just about everything can carry it, even pteranodons. So go to the arctic (with hide/cloth armor if you wanna reduce cold a little bit) with a pteranodon, then pick it up! Be mindful of direwolves and other dangerous creatures, though. To minimize the risk, go there with nothing in your inventory or hotbar, and just a pteranodon with a saddle. Then, you can pick them up and transport to your home/a warmer place. Good luck!
For the person on mobile who found one in redwoods, ha! I'm not sure if that's odd or not but mobile happens to generate some really weird creature placements. I found a procoptodon in the middle of the arctic and my sister found a Griffin in the Arctic. We both play on mobile.
Fun fact. If u like these penguins and don’t want to kill them but u have to kill them for polimer I have a tip for u. If u r in ragnarok and u want polimer kill mantis. The give u 10 times more polimer and u won’t have problem killing them Because they r ugly
So I had a hard time getting organic polymer, one day I just happen to see these things and go” aaawww, your cut, now I want to kill you”. After that I got so much polymer after killing an entire Colony of them