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Living things

Antarctic krill

Antarctic krill (Euphausia superba) are small, shrimp-like marine crustaceans that serve as a vital food source for many Antarctic animals.

Also known as: Euphausia superba

How big is it?

6 cm · defined adult body length

Also 2.362 in

Defined adult body length · representative specimen
Typical recorded range: 5 cm to 6.5 cm.

Scale illustration of an Antarctic krill, showing the recorded defined adult body length.
Recorded defined adult body length: 6 cm.

A little perspective

Antarctic krill vs Lacrosse ball: length comparison

The regulation-range diameter of a lacrosse ball is about 1.06 times the adult body length of an Antarctic krill.

Scale
Antarctic krill

Antarctic krill (Euphausia superba) are small, shrimp-like marine crustaceans that serve as a vital food source for many Antarctic animals.

6 cmDefined adult body length
0 - shared origin
Lacrosse ball

A lacrosse ball is a solid rubber ball used in the sport of lacrosse, designed to meet official standards for play.

6.35 cmDefined regulation-range diameter
0 - shared origin

Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions.

Measurements, assumptions & sources +

Antarctic krill

Defined adult body length: 6 cm; representative specimen; range 5 cm–6.5 cm.

A defined adult Antarctic krill (Euphausia superba) 6 cm long with a 1.5 g wet mass. Body length excludes the antennae; sex, maturity and feeding condition affect size.

Australian Antarctic Program — Antarctic krill

The marked defined adult body length is calibrated. Unmeasured illustration details are representative.

Lacrosse ball

Defined regulation-range diameter: 6.35 cm; specified; range 6.27 cm–6.47 cm.

A defined regulation-range lacrosse ball 63.5 mm in diameter and 145 g. The selected values lie within World Lacrosse equipment limits.

World Lacrosse — Equipment and ball standards

The marked defined regulation-range diameter is calibrated. Unmeasured illustration details are representative.

Use the visual comparison to explore its scale, then check the measurements and sources.

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Why this measurement?

Why we use 6 cm

We compare the adult body length of an Antarctic krill. This is a representative comparison value; individual specimens or conditions can vary. The recorded range is 5 cm to 6.5 cm.

A defined adult Antarctic krill (Euphausia superba) 6 cm long with a 1.5 g wet mass. Body length excludes the antennae; sex, maturity and feeding condition affect size.

The marked horizontal span follows the measured feature, not the edges of the image. How calibrated comparisons work →

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Recorded properties

Dimensions and measurements

PropertySelected valueRecorded rangeBasis
6 cm5 cm to 6.5 cmrepresentative specimen
1.5 g1 g to 2 grepresentative specimen

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Sources and method

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