White-tip shark. Unlike most sharks
that must keep mooving to ventilate their
gills, the White-tip is able to pump water to
breath. This allows it to sleep, usually under
ledges and in calm sand areas on the reef. White-tip shark. Unlike most sharks
that must keep mooving to ventilate their
gills, the White-tip is able to pump water to
breath. This allows it to sleep, usually under
ledges and in calm sand areas on the reef.