What is inside a penguins mouth?

Inside a penguin's mouth, there are several sharp, backward-facing spines called palatal spines that help the penguin grip and swallow slippery fish and squid. Penguins have a fleshy tongue with specialized papillae that help them hold onto their prey. Penguins also have a salt gland located near their eyes that helps them eliminate excess salt from their bodies, as they swallow a lot of seawater while hunting for fish. Overall, a penguin's mouth is adapted for catching and consuming its aquatic prey efficiently.