Seel’s tongue is coated with salty saliva so it doesn’t stick to icy surfaces. Its vascular system shunts excess heat to its horn, making it easier to break ice. The horn becomes especially warm when Seel is in hotter climates.

Dewgong’s body has gotten bulkier and better at regulating temperature, so its horn has instead adapted to draw heat out of whatever it pierces. Would-be predators escape with frostbitten dents.