Who has the biggest teats on record?

The animal with the largest teats on record is the blue whale. These massive marine mammals can have mammary glands that weigh up to 100 pounds (about 45 kg) each, with teats that can be as long as 2 feet (about 0.6 meters). Blue whales are the largest animals on Earth, and their impressive size contributes to the extraordinary size of their teats, which are adapted to nurse their calves in the ocean.