Floating Animals 0,O

I was at the April Fools party. I was just finished Jam-A-Gramming somebody when I saw the word 'Animals' floating in the random sky. Was this supposed to happen for April Fools party, or is it a glitch? I think it is a glitch because usually random floating button words are glitches.

See it? Right beside-below-ish that Arctic Wolf with the milkshake on his head.