Whales are thought to as the biggest animal in the world but there are more to them than that. First, blue whales tongues weigh as much as a elephant. Thats huge! In addition to their massive tongue, their hearts way as much as a automobile. All together, these giant animals weigh in at a total of 200 tons or 400,000 pounds! Along with the english system, blue whales can hear each other up to 1000 miles. That's crazy! Secondly they grow to be 90 years old! They have two blowholes that they inhale and exhale from. They do these at the surface of the ocean. They also have a layer of fat called blubber. It helps them from the cold waters of the ocean. If I lived in the ocean I would want blubber. In conclusion, blue whales are fascinating creatures.