They can't regenerate like an earthworm or crawl like a snake, but they have tiny, dagger-like needles inside their mouths that some of them use to spearfish their prey and suck out the insides.

它不能像蚯再生， 也不能像爬行，但它里有细小、像匕首针， 其中些用它来用矛刺猎物并吸出内脏。