Whale shark
10 m - Length; defined specimen.
The whale shark is the largest living fish and feeds by filtering plankton from the water.
A chosen 10 m, 10 tonne whale shark, a fish rather than a whale.
Defined examples — our methodologyA blue whale is about 2.5 times as long as a whale shark. Selected basis: a defined specimen of Whale shark; a representative value for Blue whale; approximate values.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions.
10 m - Length; defined specimen.
The whale shark is the largest living fish and feeds by filtering plankton from the water.
A chosen 10 m, 10 tonne whale shark, a fish rather than a whale.
Defined examples — our methodology25 m - Nose-to-tail length; representative.
A blue whale is a baleen whale that feeds by filtering small animals from seawater. It is the largest living animal known.
A chosen 25 m, 100 tonne adult blue whale (Balaenoptera musculus). Population, sex and age matter: this is a representative comparison specimen, not a record animal.
NOAA Fisheries — Blue whaleThere’s always another scale
Side by side

Illustrative artwork · not to scale
Illustrative artwork · not to scale
Illustrative artwork · not to scale
Illustrative artwork · not to scaleGot a good eye for scale?