Cyanobacteria are found almost everywhere; in oceans, lakes and rivers as well as on land. They flourish in Arctic and Antarctic lakes, hotsprings and wastewater treatment plants. They even inhabit the fur of polar bears, to which they impart a greenish tinge.
Amazon is initially offering FreeTime Unlimited, which costs Prime members $2.99 per month per child -- or $6.99 per family -- on the Kindle Fire (2012), Kindle Fire HD, and Kindle Fire Fire HD 8.9. If you're not a Prime member, the monthly fee jumps to $4.99 and $10.99, respectively. The name of the service is a bit oblique.
An Amazon Prime subscription costs $99 and is good for one year. If this sounds a little too steep, there are a few other options for obtaining the Prime service, minus the media streaming, for free: Provide a University E-mail Address. The first method is to take advantage of the Amazon Student offer.