List two animal species that are endemic to Antarctica.
1. Emperor Penguin (Aptenodytes forsteri)
2. Weddell Seal (Leptonychotes weddellii)
Complete the following task based on the instruction and optional input provided.### Instruction:
List two animal species that are endemic to Antarctica.

### Output:
1. Emperor Penguin (Aptenodytes forsteri)
2. Weddell Seal (Leptonychotes weddellii)