It would be taking animals homes and if they don't have a home they could die. Also it could generally mess up their way of living and some would have to adjust to a new life style. I hope this helped <3
Answer:
A human heart is roughly the size of a large fist.
Explanation:
but the size varies according to an individual's age, health and size. The heart weighs 7 to 15 ounces.
Astronomers have seen stars forming within a nebular cloud. As the nebular cloud condenses and its own gravitational attraction collapses it, heat and energy build up creating a planet.
I don't really know but I pick b.have always been vestigial.