English: Largest and smallest whale (Blue Whale and Hector Dolphine)
Français : Tailles comparées d'une baleine bleue (plus grand animal au monde), d'un homme et d'un dauphin, d'après dessin de T. Bjornstad (TBjornstad)
Date 24 April 2007
Author T. Bjornstad (https://commons.wikimedia.org/wiki/User:ToB)
Source: https://commons.wikimedia.org/wiki/File:Image-Blue_Whale_and_Hector_Dolphine_Colored.jpg

The blue whale (Balaenoptera musculus) is a marine mammal belonging to the baleen whales (Mysticeti). It is the largest animal known to have ever existed. Blue whales were abundant in nearly all the oceans on Earth but their numbers have been greatly reduced due to whaling.