I thought I'd post a few articles of interest
- Obstacles, snags and choking devices for marine life - all along our 'pristine coastline'
http://www.vancouversun.com/technology/Ocean+garbage+Floating+landmines/4470844/story.html
- Humpback navigation story
http://www.wired.com/wiredscience/2011/04/humpback-whale-migration/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+wired%2Findex+%28Wired%3A+Index+3+%28Top+Stories+2%29%29
- Humpback navigation story
http://www.wired.com/wiredscience/2011/04/humpback-whale-migration/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+wired%2Findex+%28Wired%3A+Index+3+%28Top+Stories+2%29%29