00:00At the edge of the reef, the seafloor begins to fall away, dropping sharply into the deep blue of the
00:06open ocean.
00:08Here, strong currents and constant wave energy shape a demanding environment where only the largest and most powerful fish thrive.
00:19Among them, the bumphead parrotfish moves in slow, deliberate groups.
00:24It is the largest of all parrotfish, its heavy beak built to break coral.
00:30Each bite produces a steady, echoing crunch, grinding coral into fine sand, helping to build the very beaches that line
00:39these islands.
00:41Nearby, the bicolor parrotfish glides along the reef face.
00:46At first glance, individuals can look completely different.
00:50Some are dull and subdued, blending into the reef.
00:54Others are bright and striking, marked by vivid blues and greens.
00:59But this is no coincidence.
01:01Like many parrotfish, they change as they grow.
01:06Beginning life in muted colors, often as females, some will later transform, becoming male and shifting into bold, unmistakable patterns.
01:16What appear to be different fish are, in fact, the same species at different stages of life.
01:23Together, these parrotfish feed, transform and shape the reef, living at the boundary between the coral world and the vast
01:32ocean beyond.
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