ニワトリに尾を付けたら、恐竜になった。

ニワトリに尾を付けたら、恐竜になった。

生まれながらに人工的に小さな尾を付けたまま育ったニワトリの歩き方が、重心の取り方も相まって恐竜そのものだったとのこと。

Effect of added mass and experimental tail on limb posture and kinematics.(A) Diagram showing the average limb posture during standing position of control (C), control-weight (CW), and experimental subjects (E). The stick figure above indicates the limb segment orientation among groups to visualize postural differences among treatments. Hindlimb bones and segment orientation are color-coded as in Fig. 1. (B) Diagram of the average limb posture during touch down (beginning of support phase) and during lift-off (end of support phase) of control, control-weight, and experimental animals. (C) Femur angle through the support phase for control, control-weight, and experimental subjects. Data are presented as mean ? s.e.m.

Experimental conditions and kinematic parameters measured.(A) Scheme of the control (C, grey hindlimbs), control-weight (CW, yellow hindlimbs), and experimental (E, orange hindlimbs) subjects. Control-weight subjects were raised with extra weight located over the pelvis. Experimental animals were raised carrying a wooden stick inserted in modeling clay and attached to the pelvic girdle. Estimations of the center of mass of the tail rig (tCOM), as well as of a control (cCOM) and of an experimental individual (eCOM), are shown. (B) Diagram of the segmental angles (f, femur; tt, tibio-tarsus; tm, tarso-metatarsus) and joint angles (k, knee; a, ankle) used in this study.

チリ大学の研究で明らかに。おぉ〜確かに！って、恐竜が歩くところは映画でしか見たこと有りませんが...
尾は、実験として取り付けたもの。近い将来、本当の恐竜を作る実験も行われるに違いないと確信。。

Copyright: © 2014 Grossi et al.
via:Gajitz
Original:Walking Like Dinosaurs

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