Corrected sentence:
An echidna uses its super nose to feel a bug moving and then grabs it.
Simple version for a 5-year-old:
The echidna uses its super nose, feels a bug wiggle, and grabs it.
Why this is better (short steps):
- Start with "An echidna" — that sounds natural.
- "Uses its super nose to feel" shows what the echidna is doing.
- "Then grabs it" makes the order of actions clear: first feeling, then grabbing.