crawl along

1. Of a person, to proceed forward or move across the length of something on one's hands and knees. Looking down made me so dizzy that I had to crawl along the ledge. We crawled along in the shadows to avoid being seen by the Unless you want to fall in the ocean, you better crawl along that narrow platform.

2. Of an animal or insect, to proceed forward or across the length of something by dragging its body along the ground. When I saw the bee crawling along the windowsill, I bolted out of the room. A: "Ah! What is that crawling along the floor?" B: "Hmm, looks like some sort of beetle." Don't worry, it's just a ladybug crawling along the deck.