This file explains where were some images in this directory taken from

kangaroo.jpg:      https://commons.wikimedia.org/wiki/File:Kangaroo_and_joey02.jpg by fir0002/Flagstaffotos / GFDL 1.2
chameleon.jpg:     https://commons.wikimedia.org/wiki/File:Chameleon_(16139192778).jpg by Laika ac / CC BY-SA 2.0
polar_bear.jpg:    https://commons.wikimedia.org/wiki/File:Polar_Bear_AdF.jpg by Arturo de Frias Marques / CC BY-SA 4.0
moose.jpg:         https://commons.wikimedia.org/wiki/File:Male_Moose.jpg by Ryan Hagerty / Public domain
scarlet_macaw.jpg: https://commons.wikimedia.org/wiki/File:Ara_macao_-Diergaarde_Blijdorp_-flying-8a.jpg by Jar0d / CC BY-SA 2.0
crocodile.jpg: https://commons.wikimedia.org/wiki/File:Marsh_Crocodiles_basking_in_the_sun.JPG by Kmanoj / CC BY 3.0
dragon.jpg:    https://commons.wikimedia.org/wiki/File:Varanus_komodoensis4.jpg by Raul654 / CC BY-SA 3.0
koala.jpg:     https://commons.wikimedia.org/wiki/File:Koala_climbing_tree.jpg by David Iliff / CC BY-SA 3.0
lemur.jpg:     https://commons.wikimedia.org/wiki/File:Ring_tailed_lemur_and_twins.jpg by Sannse / CC BY-SA 3.0
panda.jpg:     https://commons.wikimedia.org/wiki/File:Lightmatter_panda.jpg by Aaron Logan / CC BY 1.0