This doesn’t exactly answer your question, but you might be interested to know about image search by color. Once you pick the animal, you can plug in the colors you have and add the tag for that animal. Source: almost 2 years ago

Are you familiar with the labs.tineye.com/multicolr/ search engine? Maybe that could help you on your quest! Source: over 2 years ago

Trust me I spent the entire night yesterday listenting to more than 300 background musics on storyblocks.com and also on youtube hoping to find this specific one but I did not. Which made me think that it's probably a song from a video game or something since mike love videogames. Source: about 1 year ago

Aside from sites others have already mentioned, have you checked out Storyblocks or Artgrid? Source: over 1 year ago

Music licensing is extremely complicated. Unless the song already exists as one that you can easily buy the rights to from a service such as storyblocks.com you have to negotiate for rights, which takes a long time. Services like that tend to only license music that can be called "elevator music" or music that goes well in the background, but isn't listened to on its own. Source: over 1 year ago

FYI: This is the documentary it was featured in (https://www.youtube.com/watch?v=xcJlvN1ssco) starting around the 7:28 mark. I contacted the channel and they claimed they got it from storyblocks.com back in 2017 but I have searched through hundreds of songs on that site with no luck. Source: over 1 year ago

Subscription to an asset library like http://elements.envato.com or http://storyblocks.com. Source: almost 2 years ago