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.
02:12
03:18
02:14
00:59
00:50
01:18
01:20
02:18
01:06
00:21
01:23
00:35
01:14
02:01
01:14
01:57
01:30
00:47
00:46
01:01
00:59
00:46
01:30
01:04
02:14
01:06
02:22
01:06
00:52
02:17
02:04
02:15
01:40
01:04
01:24
01:15
01:51
01:44
01:44
03:02
00:50
01:00
00:21
01:23
01:14
00:46
00:42
01:37
01:33
01:43
00:12
00:47
00:46
01:04
01:18
00:45
01:07
00:46
01:16
01:39
03:18
02:10
05:42
01:14
01:11
01:56
01:51
01:12
01:12
06:18
01:57
02:02
01:28
01:21
01:36
01:32
04:54
02:03
01:24
01:31
01:20
00:47
01:22
01:01
01:03
01:21
01:05
01:13
01:17
00:56
01:00
01:49
02:05
00:56
03:04
00:40
01:02
01:37
02:25
01:18
01:26
01:18
00:59
02:49
02:19
02:19
01:59
00:49
00:38
02:34
02:10
01:46
00:54
02:09
02:09
00:58
02:37
01:11
01:40
01:22