Categorize the following list of animals into mammals and reptiles.
Kangaroo, Cobra, Turtle, Gorilla
Mammals: Kangaroo, Gorilla
Reptiles: Cobra, Turtle
Complete the following task based on the instruction and optional input provided.### Instruction:
Categorize the following list of animals into mammals and reptiles.

### Input:
Kangaroo, Cobra, Turtle, Gorilla

### Output:
Mammals: Kangaroo, Gorilla
Reptiles: Cobra, Turtle