Then again I'm not sure....
There is lots of speculatiin, and a Mamba is supposed to "move" faster than any snake alive.
I know this. I remember watching an old Bill Jordan hunt in South Texas. One of the guys shot a big diamondback with a bow, that was coiled and ready. When the arrow left the bow, that rattler had moved toward the arrow with it's strike at least a foot.
You had to frame by frame it, but the snake actually "caught" the broadhead. Damndest thing I ever saw, and the only reason I believe it....I saw it frame by frame.
Honestly, that may mean nothing when it comes to mongeese? Mongooses? ER....a gaggle of mongoose....es.