- Blue whale, Balaenoptera musculus
- 190 tonne(s)/metric ton(s)
- Not Applicable ()
The largest animal on Earth based on weight is the blue whale (Balaenoptera musculus), which can weigh up to 160 tonnes (352,739 lb) and has an average length of 24 m (80 ft). A huge specimen caught in the Southern Ocean, Antarctica, on 20 March 1947 weighed 190 tonnes (418,878 lb) and measured 27.6 m (90 ft 6 in).