photos citations
Liger Facts. (2015, June 04). Retrieved January 12, 2018, from https://bigcatrescue.org/liger-facts/
Materials Science Lab. (n.d.). Retrieved January 12, 2018, from http://www.mlz-garching.de/englisch/instruments-und-labs/user-labs/materials-science-lab.html
Rainforest Jungle Ambient Sounds 10 Hours. (2017, March 04). Retrieved January 12, 2018, from https://www.youtube.com/watch?v=bv7ogWz7zGQ