This article suggests that birds literally see the earth's magnetic field, which they use for navigation. http://www.dailymail.co.uk/sciencete...field-fly.html

This article says "Earth's north magnetic pole is racing toward Russia." http://news.nationalgeographic.com/n...arth-core.html

Could changes in the Earth's electromagnetic field be significant enough to confuse animals into killing themselves? For example, it has been suggested that some of the birds found dead may have suffered a lack of oxygen - perhaps flying too high by accident? (http://www.dailymail.co.uk/news/arti...ain-beaks.html)

In other animal news, our waters are so contaminated with pharmaceuticals that male fish are developing ovaries, and similarly hermaphroditic frogs are becoming common. http://blogs.alternet.org/speakeasy/...our-tap-water/

I wonder what things will be like 10 years from now...