Skeletal preparation of a late-stage skate embryo. The gill arches and branchial rays sit on either side of the head, below the eyes. Courtesy of J. Andrew Gillis Click for a full size image Human limbs may have evolved from ...
Read More »Skeletal preparation of a late-stage skate embryo. The gill arches and branchial rays sit on either side of the head, below the eyes. Courtesy of J. Andrew Gillis Click for a full size image Human limbs may have evolved from ...
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