Stephen Hawking can't walk or talk. Are 3-year-olds more intelligent than him?
I don't know what measure of intelligent scientists used in their findings, but I'm quite confident they did not base it on the ability to walk on two limbs, speak English or use retractable thumbs to make puzzles.
If a comparison in intelligence between two species is to be even remotely objective, it will have to be unbiased, and not based on the particular manifestations of intelligence in one of the species.
That's pretty ambiguous. So, let's take away all the things man is clearly superior to pigs, like bipedal walking, talking, ability to read, write, use retractable thumbs, perform calculations and rational thinking. Let's go for the simple tasks. Put a pig in the woods and it finds the road home... AMAZING!!! 3 y.os can't do that, pigs are fuckin smart, ey? Yeah, it's called sense of smell. Pigs are smarter than us because they can use their sense of smell better than cats, dogs and 3 y.o. Wow, pigs are social, 3 y.os no way they're social. Wow, pigs locked inside a box have incredible patience and endurance, 3 y.o. cry for their mommies. That's so smart, Jack, let's publish this crap, we'll make millions.