11) How tall can the spout of a blue whale reach?
12) How much do adult blue whales weigh compared to elephants?
13) What is the diet of a blue whale?
14) How much can a blue whale consume in a day?
15) What is the classification of a blue whale?
16) What is the primary threat to blue whales?
17) How much can a blue whale weigh?
18) How do blue whales breathe?
19) What is the estimated population of blue whales today?
20) What is unique about the markings of blue whales?