Aleksei Sytsevich (Earth-1600)

Aleksei Sytsevich (a.k.a. Rhino) was the result of a corrupt Oscorp project based on Dr. Connors' research on cross-species genetics. The project's executive abused Connors' research to apply it to black-market dealings. Aleksei was picked to be tested with the unfinished rhino serum, which resulted in his transformation. After this, he was locked up underground for "safekeeping." The serum would later be modified for further research, which was later stolen by Alex O'Hirn in order to get revenge on his bully, Flash Thompson.

Trivia

 * This version of Aleksei is actually the first Rhino before Alex O'Hirn stole the serum.
 * He also has a tail.
 * The Rhino's backstory is similar to that of Earth-616 and Earth-12073.