Koalas' brain cases are only about 40% full of brain, the rest is fluid and fatty tissue. Their brains themselves are completely smooth, lacking most of the cortical structure normally associated with higher cognitive functions in mammals. A crocodile's brain is more highly structured than a koala's, and there are lizards that outperform them in problem solving and learning ability. They understand context so poorly that they don't recognize an eucalyptus leaf as food if it's been plucked from the branch.

But no koala has ever claimed that filling static floating-point numbers into a high-dimensional matrix is just like how a human child learns.

@datarama heh, I got "koala" as my nickname in university. Lately I'm more into capybaras, but a critter that sleeps seems so much more intelligent than us.

To make it fair, maybe you should have included in the list animals that hurt severely their peers, if there are any...