fetus necklace | gold vermeil pp_render Instead it's a ring of

Instead it's a ring of bone with two lateral masses joined by anterior and posterior arches

The skull holds a tubular snout used for ambush predation: an elastic lens and rapid head rotation produce one of the fastest strikes in the vertebrate world

the heart's natural pacemaker

Same design as the silver version

fetus necklace | gold vermeil pp_render Instead it's a ring ofFetus necklace 18k gold vermeil The embryonic stage ends and the fetal stage begins at week eight. Organ systems are sketched. The fetus moves and responds to sound. The pregnancy crosses from a period defined by structural anomaly risk to one defined by growth, maturation, and the start of fetal medicine in earnest. The Science of Fetal Development The fetal period runs from week eight through delivery, the longest stretch of development.