| “ | A platypus? | ” | |
| — Dr. Doofenshmirtz before the ultimate discovery... | |||
The duck-billed platypus is a fusion of every animal in the world. Key elements include the bill of a duck, the tail of a beaver, the body of an otter, the venom of a rattlesnake, the amphibiousness of a seal, the intelligence of a dolphin, and the ability to walk and be a spy like a human. Platypuses are monotremes; they lay eggs, just like echidnas.
