出典:Wiktionary
From French plantigrade, from Latin planta (“sole of the foot”) (from Proto-Indo-European *pléh₂-n̥t-eh₂, from Proto-Indo-European *pleh₂- (“flat”)) + gradus (“pace, step”) (from Proto-Indo-European *gʰredʰ- (“to go, to walk”)).
plantigrade (not comparable)
plantigrade (複数形 plantigrades)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/21 14:33 UTC 版)
In terrestrial animals, plantigrade locomotion means walking with the podials and metatarsals flat on the ground. It is one of three forms of locomotion adopted by mammals. The other options are digitigrade, walking on the toes with the heel and wrist permanently raised, and ungulate, walking on the nail or nails of the toes (the hoof) with the heel/wrist and the digits permanently raised. The leg of a plantigrade mammal includes the bones of the upper leg (femur/humerus) and lower leg (tibia and fibula/radius and ulna). The leg of a digitigrade mammal also includes the metatarsals/metacarpals, the bones that in a human compose the arch of the foot and the palm of the hand. The leg of an unguligrade mammal also includes the phalanges, the finger and toe bones.