think about it this way...
intelligence is something completely made up by humans. its a measurement we use to make ourselves feel better than each other and the rest of the animals. other animals do not understand intelligence or give a rats behind if what theyre eating is smarter than them. we as humans have the instinct and need to quantify everything in order to better our understanding of the world around us which only drives that "intelligence" fantasy. really animals have no idea what the other animals think or even if other animals can think at all. they live in their heads and their heads only. food is food to them. instincts are instincts. I doubt lions and snakes and penguins contemplate their own intelligence.
it just goes back to the idea that humans are weird.
"I have thoughts!" + "This is how many thoughts I have!" + "My thoughts are better than yours!" = INTELLIGENCE
lol but then again here I am trying to explain why we try to explain things....