Acknowledging that my own reading of the situation may be flawed, I'd though the situation was that pigs on average are better at sniffing out truffles, but dogs are the better truffle hunters on account of being "good enough" and the fact that dogs, unlike pigs, aren't going to eat half the truffles they find.
No one here seems to have any idea what they are talking about about. 1. You put a ring in the pig nose so it doesn't root and eat the truffles, 2. Dogs have a better sense of smells than pigs by a lot, 3. Big brains don't come from standing upright, whales and dolphins have larger brains, 3. Brain size is important for intelligence, almost always the larger brain the more intelligent, the whole nonsense of body to brain ratio be more important was to make half the human population not feel as bad about having smaller brains. Almost always, more brain == more smart.
> 3. Big brains don't come from standing upright, whales and dolphins have larger brains
That is a terrible "counterexample" to the idea that it's easier to balance a large brain on top of a spinal column than to support it as it sticks out in front of the animal. Whales are aquatic; every part of their body is supported by the water.
