biomedicalephemera: Embryo of Chick in Shell Shell removed and amniotic sac dessicated after 19 days incubation. Note the air sac on the left of the egg; without that, the chick would suffocate. The in the air sac oxygen is replenished through micropores
tags: The gilded shell, science,photography,
from: http://climacus.tumblr.com/post/23038084580
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