In order to capture Sumatran rhinos so that they can be transferred to a safe location, special methods have been devised to trap the rhinos in a way that minimises injury to the animal and risk to conservation staff.
According to experts, this is the safest way to do it.
A smooth pit is constructed without a weak spot. It is also not possible for the rhino to charge at the wall and do harm to itself.
![DCIM100GOPRO](http://www.borneorhinoalliance.org/wp-content/uploads/2013/11/rsz-Construction-of-a-Sumatran-rhino-trap-July-2013.jpg)
A conventional surface trap in the form of a small paddock brings two risks: first, the rhino may quickly find the weakest point and work on it continuously until it can escape; or if there is no weak spot, the rhino may run and charge repeatedly at the fence, injuring its face and head.
![rsz The same rhino trap in September 2013 (invisible)](http://www.borneorhinoalliance.org/wp-content/uploads/2013/11/rsz-The-same-rhino-trap-in-September-2013-invisible.jpg)