Pebble, a deep-diving penguin who brings you a pebble of knowledge

Pebble

Deep dives mascot

Earnest, a little nerdy, and overdressed for every dive. Hates fluff. Shows affection by bringing you pebbles.

Job
Research librarian and deep diver
From
A windy sub-Antarctic island
Personality
Quiet, thorough, overdressed
Health quirk
Seasick on boats, which is embarrassing for a penguin

Her story

Pebble grew up on a cold, windy island where penguins give each other pebbles as a sign of love. She started bringing pebbles of evidence instead: a trial here, a meta-analysis there, the one study everyone else missed. She dives deeper than most and always comes up with something worth keeping.

She wears a tiny diving suit for every dive, even though penguins really don't need one. She says it's professional.

What she says when you win

Find her in Deep dives.

Updated 15 November 2026.