Multiple choice general knowledge math & puzzles The tallest animal can grow up to 5.5 metres. What is it? Elephant Giraffe Camel Zebra Reveal answer Fill a bubble to check yourself B Correct answer Explanation The giraffe is the tallest living terrestrial animal. Adult males can reach heights of 5.5 metres (about 18 feet). Elephants are the heaviest, but they do not reach the height of a giraffe.