diff --git a/src/activities/explore_world_animals/resource/animals/README b/src/activities/explore_world_animals/resource/animals/README
index 45b8656eb..679e1eacb 100644
--- a/src/activities/explore_world_animals/resource/animals/README
+++ b/src/activities/explore_world_animals/resource/animals/README
@@ -1,12 +1,12 @@
 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.com.au / GFDL 1.2
-chameleon.jpg:     https://commons.wikimedia.org/wiki/File:Chameleon_(16139192778).jpg by Laika ac / CC-BY-SA 2.0
+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 / GFDL 1.2
-dragon.jpg:    https://commons.wikimedia.org/wiki/File:Varanus_komodoensis4.jpg by Raul654 / GFDL 1.2
-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 / GFDL 1.2
-panda.jpg:     https://commons.wikimedia.org/wiki/File:Lightmatter_panda.jpg by Aaron Logan / CC-BY-1.0
+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