The RangerBot underwater drone has been developed by Australian scientists to help tackle an outbreak of coral-eating crown-of-thorns starfish on the Great Barrier Reef. Matthew Stock reports.
00:47
01:27
00:56
01:24
01:20
01:44
00:31
01:24
00:37
01:15
00:27
02:10
01:57
01:44
01:26
01:01
01:07
01:01
02:17
00:49
01:44
00:31
01:22
01:10
01:01
01:05
02:00
01:29
01:06
01:41
01:06
01:18
01:03
01:28
01:17
01:02
01:11
01:02
01:00
01:00
00:47
01:22
01:27
01:25
01:21
00:37
01:15
00:27
01:13
01:18
01:07
00:49
01:20
01:21
01:11
01:09
01:09
01:08
01:31
01:01
01:29
01:18
01:50
05:56
01:10
01:45
01:21
01:29
01:08
01:16
01:48
02:16
05:27
01:32
01:11
00:51
01:38
01:16
01:12
02:17
01:01
02:52
01:45
01:08
01:19
01:16
00:49
01:01
01:24
00:49
02:20
02:04
01:22
00:36
01:38
01:47
01:10
01:02
01:13
01:00
02:10
01:14
02:04
01:04
01:53
01:14
01:08
01:34
01:34
01:19
01:31
01:59
00:38
02:19
01:27
01:21
01:15
01:18
03:11
01:44