In spite of 250 years of taxonomic classification and over 1.2 million species already catalogued in a central database, our results suggest that some 86% of existing species on Earth and 91% of species in the ocean still await description.
The new service won't win anyone over on price. Pandora Premium is anchored to the same $9.99 a month price point of Spotify, with 50 million paid accounts, and Apple Music, which topped 20 million premium users late last year.
The service has two subscription plans: a free subscription supported by advertisements, and a fee-based subscription without ads. There are also ads in Pandora Mobile for mobile phones and the Pandora in The Home computer appliance. As of October 2014, less than 5% of active listeners were paying subscribers. As of IPO, Pandora had 800,000 tracks from 80,000 artists in its library, and 80 million users.