Iceberg Whales

Iceberg Whales are a type of whale that appear in Ninjago's Frozen Wasteland. Resembling sperm whales with large icebergs growing from their snouts, they are said to be constantly smiling; however, they are not to be taken lightly, being the only animals in the wasteland large enough to prey on Polar Ice Bears.

LEGO.com description

Always smiling, Iceberg Whales are the only animals in the Frozen Wasteland large enough to eat Polar Ice Bears. Since they prefer frozen food, they use their icy breath to freeze their prey. They then play with and sing to it before eating.^{[link unavailable]}