Answer:
Claribel is not heavy and does not suffer the effects of gravity, which makes it the perfect pet for Sven.
Step-by-step explanation:
Claribel is a yellow canary that saves the lives of some astronauts, like Sven, who were in space. Claribel lives in the space station and is a very light and immune to gravity, which makes him a perfect pet for anyone who needs to venture into the space environment.