I mean, you gotta admit the differences is something that varies, especially just on size and build. If I saw a guy offering fancy feast to a tiger, I'd probably also question it.
Also would say, this could be the best scene ever in a Jurrasic Park movie. Trex is charging in... a kid just drops birdseed on the ground, T-Rex stops and begins eating... Palientologist asks kid "how the heck did you know that would work", Kid "Bird!".
Found the QA tester.