The ride across the mountainside was fun. Gutaxun wasn't weighed down by anything heavy this time around, other than the three people on his back, so he flew down the mountain at top speeds!
At some point, when the mountain got too steep, he even had to slow down, so as to not lose balance. Gravity was pushing the big beast down, and he had to be careful, because he didn't want to crush his master, or have his master fly away if he stepped into a hole or something of that equivalent.
Anna pushed Gutaxun to run at full speed, simply because she thought it was fun. Dangerous, but fun.
Gutaxun had to protest at some point, by slowing down himself, so as to not kill anyone. Even as a dinosaur he was smart enough to know that it was a stupid idea to run down a mountain at full speed. At some point, he didn't run any faster even when he was prompted to. He was smart enough to make predictions, which was amazing coming from a dinosaur.
