| [00:07.580] |
You might think it would be easy for a fish to swim between these small islands |
| [00:12.360] |
But not so |
| [00:15.110] |
You wouldn't find these little fish in deep water |
| [00:21.980] |
The open ocean beyond their shallow reef is, in fact, a huge barrier |
| [00:27.520] |
So how did all these fish come to be here |
| [00:35.460] |
Colonising new reefs is a challenge faced by fish across the South Pacific but they have a simple solution |
| [00:44.100] |
Once a year, thousands of groupers gather on the reefs |
| [00:48.670] |
With the coming of the full moon, an extraordinary event unfoylds |
| [00:59.930] |
They spawn |
| [01:02.520] |
A female darts up and releases millions of eggs |
| [01:06.150] |
quickly followed by the males, who jostle to fertilise them |
