| [00:00.650] | Out in the open ocean, they hatch into larvae |
| [00:04.650] | and become part of the vast plankton soup |
| [00:09.300] | And it's not just fish that depend on the whim of the open ocean to disperse their larvae |
| [00:14.130] | Land crabs and other crustaceans do too |
| [00:18.980] | But there's a deadline They each have a set number of days to reach new islands |
| [00:25.780] | Astonishingly,these larvae are able to home in on the smells and sounds of distant reefs |
| [00:33.480] | Out of the millions of larvae that set off only a small fraction will succeed in colonising new islands |
| [00:40.610] | Curiously, some freshwater fish also spawn at sea |
| [00:45.500] | and use the sea to help their larvae colonise rivers |
| [00:49.990] | These freshwater eels in the Solomons began their lives hundreds of miles away |
| [00:55.040] | possibly in a deep sea trench off New Guinea |
| [00:58.430] | Yet as larvae and then elvers,they made their way into these freshwater pools |
| [01:06.220] | and over 40 years,grew into two-metre giants |
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