An orca is about 2.8 times as long as a bottlenose dolphin. Selected basis: a defined specimen of Orca; a defined specimen of Bottlenose dolphin; approximate values.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions.
7 m - Length; defined specimen.
The orca, or killer whale, is a highly intelligent marine mammal in the dolphin family that hunts in coordinated groups.
A chosen 7 m, 4,500 kg killer whale. This is a toothed whale, not a blue whale.
Defined examples — our methodology2.5 m - Length; defined specimen.
A bottlenose dolphin is a marine mammal with a streamlined body, prominent dorsal fin and a short beak-like snout.
A chosen 2.5 m, 200 kg bottlenose dolphin. This marine mammal breathes air; its length and mass vary by age and population.
Defined examples — our methodology
There’s always another scale
Living thingsOrca7 mThe orca, or killer whale, is a highly intelligent marine mammal in the dolphin family that hunts in coordinated groups.
Living thingsBottlenose dolphin2.5 mA bottlenose dolphin is a marine mammal with a streamlined body, prominent dorsal fin and a short beak-like snout.
Living thingsHoneybee1.5 cmA honeybee is a social insect that lives in a colony and gathers nectar and pollen from flowers.
PeopleHuman1.75 mA human is a primate of the species Homo sapiens, distinguished by habitual upright walking, language and complex tool use.
Living thingsAfrican elephant3.3 mAn African elephant is a large plant-eating mammal recognised by its trunk, tusks and broad ears.
Living thingsBlue whale25 mA blue whale is a baleen whale that feeds by filtering small animals from seawater.Side by side
Illustrative artwork · not to scaleIllustrative artwork · not to scale
Illustrative artwork · not to scale
Illustrative artwork · not to scaleGot a good eye for scale?