system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] Why does HYDRA (named after the mythical serpent with multiple heads) use the symbol of an octopus as its logo?
gpt
Iirc in one continuity, it was originally (like hundreds or more years ago) an actual hydra on the shield but got changed over the years a few times, ended up getting flipped over somewhere along the line, and turned into an octopus.

In another continuity (I think - might just be the same one) the organization went through a bunch of changes and acquisitions by groups over the centuries. The shield changed along with it. As they absorbed more organizations, each subsidiary became an "arm" represented by a tentacle on the shield.