News Animals RNA editing helps octopuses cope with the cold Changes in DNA’s instructions tweak proteins that may sustain brain function A California two-spot octopus is one type of cephalopod — along with California market squid — that edits mRNA in its nervous system in response to cold water. Tom Kleindinst Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Freda Kreier June 8, 2023 at 11:00 am The ocean can be a cold place to call home. Mammals like seals stay warm by enveloping themselves in a layer of thick fur and blubber.