"scientific" humour

you can hear the cream of ants? *duck and run*

That still wouldn't have killed the elephant . The ant didn't have enough mass to have serious momentum. It would have splattered against the elephants hide and died.

The issue is that since everything was in a spacecraft the ant wouldn’t gain any extra energy by jumping in the opposite direction of travel. Like throwing a ball upwards while in a car, it goes strait up and then back down even when the car is moving. The direction of the vehicle is automatically applied to anything moving within it. Therefore no matter how’s fast or in which direction of travel no aunt could break the back of an elephant. Also the lack of air pressure wouldn’t lead to a lesser oxygen intake and kill everything through suffocation. I admire the idea of the joke though.