The Blue Whales belong to a marine mammal, The Blue Whale Parvorder, Mysticeti. It is the largest creature ever, with a record weight of 29.9 meters in length and a record weight of 173 tonnes.
The Blue Whales belong to a marine mammal, The Blue Whale Parvorder, Mysticeti. It is the largest creature ever, with a record weight of 29.9 meters in length and a record weight of 173 tonnes.