Illustration of Urbilateria, the hypothetical last common ancestor of bilaterian animals. Bilaterians are animals with bilateral symmetry, which means they have a head, a tail, and an upper and lower side, as well as left and right sides. The majority of animal life on Earth has bilateral symmetry.
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Details
Creative#:
TOP29027457
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
Not Available
Property Release:
Not Available
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No
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