What part of the brain takes its name from the Greek for seahorse?

The story behind the answer

Hippocampus comes from Greek hippos (horse) + kampos (sea creature), meaning “seahorse,” named for its curved, seahorse-like shape. Located in the medial temporal lobe, it’s crucial for forming new declarative memories and for spatial navigation; damage can cause anterograde amnesia and it’s often affected early in Alzheimer’s disease.

Memory aid: picture a “hippo on campus” learning new routes and facts—hippocampus = memory