The length of a bottlenose dolphin is about 1.43 times the height of a human. Selected basis: a defined specimen of Bottlenose dolphin; an example for Human; approximate values.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.
2.5 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 methodology1.75 m - Height; example.
A human is a primate of the species Homo sapiens, distinguished by habitual upright walking, language and complex tool use.
A defined adult standing 1.75 m tall with a mass of 70 kg. This is a consistent comparison specimen, not a global average or health benchmark.
Defined examples — our methodology
There’s always another scale
Living thingsBottlenose dolphin2.5 mA bottlenose dolphin is a marine mammal with a streamlined body, prominent dorsal fin and a short beak-like snout.
PeopleHuman1.75 mA human is a primate of the species Homo sapiens, distinguished by habitual upright walking, language and complex tool use.
Living thingsHoneybee1.5 cmA honeybee is a social insect that lives in a colony and gathers nectar and pollen from flowers.
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.
Living thingsGiraffe5 mA giraffe is an African mammal distinguished by its extremely long neck and legs, feeding mainly on tree leaves.
TransportFamily car4.5 mA family car is a motor vehicle designed to carry several passengers and their belongings.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?