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Table 1 Body weight, brain weight, body surface area, height and encephalization quotient of the reported intelligent dogs

From: Modified formulas for calculation of encephalization: quotient in dogs

Breed of dog Dog age (year) HEA (year) BW (kg) BSA (m2) Height (m) BMI TBV (cm3) Measurement of encephalization quotient Ranking ICC TBS \(\frac{TBC}{ICC}\) Responsibilities
EvB ES EJ EQJ EQvB EQS
Border collie 4.7 61.2 23.0 1.12 0.78 20.5 188.6 2.7 1.7 1.8 1.8 1.9 2.3a 7th 9 10.8 1.2 Herding
Standard Poodle 4.7 61.2 22.0 0.62 0.76 35.5 188.6 2.6 1.6 1.8 1.9 1.9 2.2a 8th 9 10.8 1.2 Bird retrieval
German shepherd 4.7 61.6 40.0 1.13 1.30 35.4 190 4.8 3.0 3.2 2.3 2.1 3.1a 2nd 11 15.4 1.4 Working
Golden retriever 4.7 61.4 34.0 1.22 1.00 27.9 189.3 4.0 2.5 2.7 2.1 2.2 2.8a 4th 10 12.9 1.3 Bird retrieval
Doberman pinscher 4.7 61.4 40.6 1.42 1.18 28.6 189.3 4.8 3.0 3.3 2.3 2.3 3.1a 1st 10 12.9 1.3 Guarding, protecting, war, work
Shetland Sheepdog 4.6 60.8 7.0 0.82 0.35 8.5 187.2 0.8 0.5 0.6 1.4a 1.2 1.3 9th 7 8.0 1.1 Herding, sport
Labrador retriever 4.7 61.4 36.0 1.14 1.00 31.6 189.3 4.3 2.7 2.9 2.2 2.2 2.9a 3rd 10 12.9 1.3 Bird retrieval
Papilon 4.6 60.6 4.5 0.23 0.56 19.6 186.5 0.5 0.3 0.4 1.2a 1.0 1.0 10th 6 6.9 1.2 Rat killing
Rottweiler 4.7 61.6 50.0 1.36 1.30 36.8 190 5.9 3.7 4.02 2.4 2.5a 1.8 6th 11 15.4 1.4 Guarding, working, military
Australian Cattle Dog 4.7 61.4 33.0 0.96 0.87 34.4 189.3 3.9 2.4 2.7 2.2 2.2 2.7a 5th 10 12.9 1.3 Herding
  1. BW body weight; BSA body surface area; E brain mass; EQ Encephalization quotient; TBV total brain volume; ICC internal cranial capacity; J Jerison; vB von Bronin; S Saganuwan; TBS total brain size; TBC total brain volume; HEA human equivalent age; BMI body mass index
  2. aHighest EQ in the row