33% of their oxygen needs · All Facts

33% of their oxygen needs
Yellow-bellied sea snakes can meet up to 33% of their oxygen needs through the skin while diving.
SrcJournal of Experimental Biology (citing Graham 1974)

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spectacle (brille)Snakes have no eyelids — each eye is covered by a transparent scale called a spectacle (brille).
pelvic spursPythons and boas still carry pelvic spurs — claw-like remnants of ancestral hind limbs used in courtship, not walking.
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