'It's a Cheshire cat,' said the Duchess, 'and that's why. Pig!'

She said the last word with such sudden violence that Alice quite
jumped; but she saw in another moment that it was addressed to the baby,
and not to her, so she took courage, and went on again:--

'I didn't know that Cheshire cats always grinned; in fact, I didn't know
that cats COULD grin.'

'They all can,' said the Duchess; 'and most of 'em do.'