A blue whale can reach a maximum confirmed length of about 29.9 to 30.5 meters (98 to 100 feet) and can weigh up to 190 to 200 tonnes (approximately 210 to 220 short tons). It is the largest animal known to have ever existed. Females tend to be larger than males. The tongue alone can weigh as much as an elephant, and the heart can be as large as a small car or automobile.
