Answer:
John Lennon sang about being this toothy creature.
What two animals do you take to bed with you?
What has a horn but does not honk?
It can be white or blue or black, Humped or have a horn. And when it talks it sings its menuets, as it's travelling the depths.
A white horned symbol of purity and grace.
I love spinach.
Animal
Difficult
Easy
Food
Funny
Kids
Logic
What am I?