Brown rat — size comparison

The brown rat spread from Asia with human transport and settlement. It uses buildings, fields, watersides and underground passages. Access to protected shelters

Silhouette comparison

Length

wzdłuż osi ciała · od pyska do końca ogonaReference values · details in the profiles

Brown rat

Rattus norvegicus

ok. 39,9 cmAdult individual · zakres i populacja opisane przy wymiarze
total length

wzdłuż osi ciała · od pyska do końca ogonaMeasurement: side

Mass
140–500 gZakres źródłowy, nie masa przypisana sylwetce
Shared ground line. The scale follows the measurement stated for each animal. Boy: approx. 115 cm
Total lengthScale in cm
010203040
Brown ratTotal lengthapprox. 39.9 cm

The scale compares the named dimensions. View direction and measurement points are given for each animal.

Scale based on the stated dimensions for each animal

Boy: approx. 115 cm
Brown rat — size comparison — facts and sources

The brown rat spread from Asia with human transport and settlement. It uses buildings, fields, watersides and underground passages. Access to protected shelters and regular food allows it to inhabit highly varied urban and rural landscapes.

It feeds mainly after dark. It is omnivorous, with a diet depending on locally available resources. It swims well and can remember routes to feeding sites. It navigates using smell and touch, travelling familiar paths between retreats.

It lives in groups with complex social contacts. Females rear young in sheltered nests, and abundant resources favour frequent breeding. Their numbers also depend on waste, water and safe resting places.

nos → koniec ogona; ogon wliczony. Średnia 399 mm przytoczona przez ADW; długość z ogonem. Punkt odpowiada średniej przytoczonej przez źródło; kwalifikatory określają jej zakres. Wysokość obrysu wynika z proporcji ilustracji; przód jest przybliżoną projekcją.

Measurement sources