A flea is able to jump straight up about 0.37 m It has been said that if a flea were as big as a human it would be able to jump over a 100 story building When an animal jumps it converts work done?
Fleas really can jump very high distances considering how small they are. Fleas can be very bothersome to dogs and cats.
A building is a physical structure standing permanently in one location consisting of walls and a roof that is the result of human engineering and technology and is constructed for continuous human occupation and for the performance of a variety of human activities within the space of the structure.
A human is an animal already, but typically organisms can only create variations within their specific Species, not even within their Genus. Unless there was a genetic mutation that made human DNA compatible with different genetically mutated animal, then such a "hybrid" of a human and an animal would be genetically impossible.