Researchers say rats are causing huge damage to the world's coral reefs because they decimate the bird populations that work to protect the embattled ecosystems. Jim Drury reports.
03:21
01:08
01:29
01:48
00:57
01:48
01:12
00:57
01:19
00:45
01:32
01:31
01:38
02:16
00:29
00:34
01:09
00:58
01:17
00:48
01:09
01:36
01:08
01:23
02:01
01:25
01:03
00:31
02:03
00:53
01:29
02:00
01:39
01:16
01:21
01:21
01:28
01:18
02:20
01:09
01:26
01:08
00:37
01:23
01:48
01:12
01:02
00:57
01:19
01:16
00:49
01:36
00:54
01:37
00:49
01:00
01:23
02:12
01:02
01:40
01:15
01:10
01:01
01:10
01:36
00:51
01:43
00:56
01:10
01:04
01:35
01:04
01:40
01:29
01:33
00:11
00:29
01:31
01:23
01:34
00:55
01:09
01:17
01:39
00:45
00:46
00:58
01:22
01:33
01:12
01:43
00:39
02:11
02:17
00:45
01:48
01:35
01:06
01:46
02:20
03:21
01:33
01:21
01:22
02:18
01:16
01:42
01:42
01:25
01:27
02:27
02:27
01:30
01:51
01:43
01:07
00:44
02:27
01:29
00:52