Complex sentence: As the result of being brought into contact with a warthog and a black rhinoceros that Shredder had abducted from the zoo, Bebop mutated into a humanoid mutant warthog while Rocksteady mutated into a humanoid mutant black rhinoceros.
Split into simpler sentences: As the result of being brought into contact with a warthog and a black rhinoceros that Shredder had abducted from the zoo. Bebop was mutated into a humanoid mutant warthog and Rocksteady into a humanoid mutant black rhinoceros.