‘爬虫’ literally means ‘crawling insect/creature’ — 爬 (pá) means ‘to crawl’ or ‘to climb’, and 虫 (chóng) means ‘insect’ or, more broadly in biological contexts, ‘creeping animal’. Historically, it refers to reptiles (e.g., snakes, lizards, crocodiles) and sometimes amphibians, reflecting their movement and cold-blooded nature. In modern Chinese, it’s the standard scientific and general term for ‘reptile’, used in biology, education, and nature documentaries.

In computing, 爬虫 has taken on a second, metaphorical meaning: ‘web crawler’ — an automated program that ‘crawls’ across the internet, scanning and indexing web pages. This usage is common in tech discussions, programming documentation, and news about search engines or data scraping. Though homophonous and identical in writing, context always clarifies whether the biological or digital sense is intended.