1.       How accurate are political polls?

http://www.freerepublic.com/focus/fr/1004883/posts

http://www.answerbag.com/q_view/1983973

They can be accurate at certain times. Exit polls are generally very accurate but polls should never be completely trusted.

2.       How do birds decide to migrate?

http://dcnr.state.al.us/hunting/hunterresources/articles/birdmigrat.cfm

http://birding.about.com/od/birdbehavior/a/How-Birds-Migrate.htm

Birds can tell from the angle of the sun on the horizon what time of year to migrate. Food supply is also very important in the decision along with temperature.

3.       How many known species are in the ocean?

http://marinebio.org/MarineBio/Facts/

The number changes almost daily of the known species in the ocean and right now it is about 199,000.