finding that Disney tends to form the core of the animal tracks. Other cartoons exist but are less often properly musical (beyond a very brief theme tune and other bits and pieces). And more people do covers of Disney than of the lesser things - meaning more chance of finding a danceable version.
for example La Mamba by Los Locos is almost certainly referring to something like the mambo in contrast to all the other related dances also mentioned in the lyrics rather than being about any snake of that name. But it's a better samba than the percussion track actually called Serpent by Guem.