You take a right instead of heading straight. Perhaps the worm dislikes taking so many bends. Then again, it is a worm...
After heading straight for a bit you stop dead in your tracks, as you've found...

...a true smorgasbord of berries!! Small red ones! Glowing yellow ones! Purple dangly ones!
You'd be experiencing true ecstasy in this moment... if it wasn't for the fact that you've hit a dead end while being chased by an enormous predator.