references
http://evolution.berkeley.edu/evolibrary/article/evograms_03
http://www.pbs.org/wgbh/evolution/library/03/4/l_034_05.html
http://dinosaurs.about.com/od/otherprehistoriclife/a/ancientwhales.htm
http://ngm.nationalgeographic.com/ngm/data/2001/11/01/html/ft_20011101.4.html
http://www.timetoast.com/timelines/whale-evolution-the-walking-whale
http://www.icr.org/article/whale-variations-support-creation/
http://creation.com/refuting-evolution-chapter-5-whale-evolution
https://www.pinterest.com/pin/98868154292159084/
http://www.whale-world.com/whale-reproduction/
http://kateh.hubpages.com/hub/The-Differences-Between-Baleen-and-Toothed-Whales
http://www.whalefacts.org/do-blue-whales-have-predators/
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0071561
http://www.environment.gov.au/marine/marine-species/cetaceans/whale-dolphins-sound
http://www.ecology.com/2010/06/07/evolution-of-whales/
http://en.wikipedia.org/wiki/Whale_vocalization
http://www.pbs.org/wgbh/evolution/library/03/4/l_034_05.html
http://dinosaurs.about.com/od/otherprehistoriclife/a/ancientwhales.htm
http://ngm.nationalgeographic.com/ngm/data/2001/11/01/html/ft_20011101.4.html
http://www.timetoast.com/timelines/whale-evolution-the-walking-whale
http://www.icr.org/article/whale-variations-support-creation/
http://creation.com/refuting-evolution-chapter-5-whale-evolution
https://www.pinterest.com/pin/98868154292159084/
http://www.whale-world.com/whale-reproduction/
http://kateh.hubpages.com/hub/The-Differences-Between-Baleen-and-Toothed-Whales
http://www.whalefacts.org/do-blue-whales-have-predators/
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0071561
http://www.environment.gov.au/marine/marine-species/cetaceans/whale-dolphins-sound
http://www.ecology.com/2010/06/07/evolution-of-whales/
http://en.wikipedia.org/wiki/Whale_vocalization