The sound created from the humpback whale breaching water can travel thousands of miles.
Blue whales are about the length of a tennis court but can grow longer than a basketball court
On average, female blue whales are about 80 feet (24 m) long but can grow to over 100 feet (30.5 m). A tennis court is 78 feet (24 m) long and a basketball court is 94 feet (29 m) long. The longest documented blue whale was 110 feet long.