Shārénjīng shì fēicháng cōngmíng de hǎiyáng dòngwù.
Killer whales are extremely intelligent marine animals.
Tips
mistakes
Despite the name, orcas are not whales but the largest member of the dolphin family (海豚科). The name 杀人鲸 is a calque of 'killer whale'; another common Mandarin name is 虎鲸 (hǔjīng) 'tiger whale', which is the more scientific term.