Original sentence: Its burrows are up to 20 mm in diameter, and reach a depth of 3.5 m.The North Auckland worm is New Zealand's largest, reaching 1.4 m in length, and 11 mm in diameter
Edited sentence: Its burrows are up to 20 mm in diameter, and reach a depth of 3.5 m.The North Auckland worm is New Zealand's largest, reaching 1.4 m long, and 11 mm in diameter