In the brain, the hippocampus is the center for memory. This is where memories are first consolidated and stored, where associations are formed and activation of a few cells in the pattern can evoke the whole memory.
The Latin root for the word hippocampus is sea horse.
The brain, languages, and puns (notice the brain coral?) all together in one beautiful shirt? I would've bought this, but unfortunately it didn't make it past Honorable Mention status on Woot.