For the Music in the Development Diary:

On My Way Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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For the Stranded Polar Bear Picture

For the Panda Bear Picture

For the Polar Bear Global Warming Impact Information

Panda Bear Fur Trade Information

Other Panda Bear Deforestation/Poaching Information

Minecraft: Education Edition Information from Game Manual

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Noun Project Sources for Posters:

polar bear
By Georgiana Ionescu
In the Ecology Collection

rowing
By Darrin Loeliger, US

Hand
By Chamaquito pan de dulce, MX

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polar bear
By Lluisa Iborra, ES
In the Minecraft Mobs Collection

Paw Print
By AlfredoCreates @ flaticondesign.com, US
In the Education 5 Glyph Collection

leaf
By Gregor Cresnar
In the Pixel Perfect: Line Collection