On average, a Wailmer is two meters in diameter, though there is some variation. Most Wailords, measured from the tip of their nose to the end of their tails are at least fourteen meters long.

[Sorry if he sounds like he swallowed a book. He's just so excited about his favourite pokemon.

Though when she jumps in excitement and her hand lands on his shoulder, he does blush a little. He's not used to this, ok]

They don't. They are really playful. Though it is better if they don't come too close.