Generate a sentence that starts with "The most interesting thing I learned today was..."
"The most interesting thing I learned today was about the unique ability of some animals to regenerate lost body parts."
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate a sentence that starts with "The most interesting thing I learned today was..."

### Output:
"The most interesting thing I learned today was about the unique ability of some animals to regenerate lost body parts."