Transcript
4 panel comic, split into two parts.
Part 1: Introverts
Panel 1: [A purple clam sits happily on a rock at low tide. Some seaweed and pebbles are strewn about] Clam: No
Panel 2: Clam: I will NOT open up.
Part 2: Extroverts
Panel 3: [A cartoony otter stares downwards]
Panel 4: [The otter raises a rock above his head]


The transcript says seal, but this is clearly an otter. Otters famously use stones as a tool for cracking clams and other prey.
Whoops thanks