Final answer:
Ulape saw a red bear carrying a whale on each side emerge from the sea and transform into a rock upon being observed, which she then reported to the other women.
Step-by-step explanation:
The passage that describes what Ulape saw that led her to notify the other women in the story is:
'Suddenly she saw a red bear... emerge from the water. He carried a whale on each side, and put them down on the beach. As soon as he noticed that he was observed, he was transformed into a rock, which may be seen up to this day. He was a supernatural being of the sea.'
From this description, we can infer that Ulape witnessed a supernatural event involving a red bear that emerged from the sea with two whales and then transformed into a rock. This extraordinary sighting prompted her to tell the other women in the story.