The instant-stop switch, though, wasn’t pressed in time to save Kabibe, a 16-month-old gorilla, who unexpectedly darted under the hydraulic door as it was closing while she was being moved into ...

Officials at the San Francisco Zoo said they retested the hydraulic door that crushed a young gorilla to death on Friday and found that its manual instant-stop switch was functioning properly.

The hydraulic door that crushed Kabibe was custom-made with a fully functional manual shut-off switch, a zoo spokesman said at the time of the incident, but the instant-stop switch wasn’t ...