The average gerbil weighs about 2 ounces and is about 4 inches long. Their small size and light weight mean that they do not have a lot of momentum when they fall. This makes it more likely that they will be injured or killed by a fall.
The height of the fall is also a factor in whether or not a gerbil will survive. A fall from a greater height is more likely to cause serious injuries or death.
Even if a gerbil does survive a fall, it may still suffer from injuries such as broken bones, internal bleeding, or head trauma. These injuries can lead to long-term health problems or even death.
For these reasons, it is important to keep gerbils away from high places where they could fall. If a gerbil does fall, it is important to take it to a veterinarian as soon as possible.