How much does a blue whale weigh?

Blue whale CC BY 2.0 filckker photosFlickr. So colossal are these majestic marine mammals, their hearts alone weigh as much as a car. Picture in your mind a ... The oldest they've discovered this way was calculated to be around 100 years old, though the average life is thought to be around 80 to 90 years. read more

The calf weighs about 2.5 tonnes (2.8 short tons) and is around 7 metres (23 ft) in length. Blue whale calves drink 380–570 litres (100–150 U.S. gallons) of milk a day. Blue whale milk has an energy content of about 18,300 kJ/kg (4,370 kcal/kg). The calf is weaned after six months, by which time it has doubled in length. read more

In comparison the blue whale (the worlds largest living animal) can grow to a length of over 100 ft. and weigh in excess of 150 tons. The blue whales heart alone can weigh as much if not more than a fully grown dwarf sperm whale. read more

Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet long and upwards of 200 tons. Their tongues alone can weigh as much as an elephant. Their hearts, as much as an automobile. read more

Antarctic blue whales gain 50% of their lean body weight in the summer feeding season, i.e. a blue whale entering the Antarctic weighing 100 tons would leave weighing 150 tons. Pregnant females probably gain 60–65%. read more

The blue whales heart alone can weigh as much if not more than a fully grown dwarf sperm whale. In fact some of the largest blue whales have had hearts that weigh as much as 2,500 lbs., which is equivalent to the weight of a small car. read more