What is biggest animal in the universe?

The biggest animal in the universe is the blue whale. Blue whales can grow up to 100 feet long and weigh over 200 tons. They can be found in all oceans, but are most common in the North Pacific and North Atlantic Oceans. Blue whales are filter feeders, meaning that they eat small organisms by filtering them out of the water. Their diet consists mainly of krill, which are small crustaceans. Blue whales are social animals and often travel in pods of up to 100 individuals. They are also very vocal and communicate with each other using low-frequency sounds.