21) What is the longest migration ever recorded for a whale?
22) How do whales communicate with each other?
23) How do whales sleep?
24) How many blowholes do whales have?
25) How many Blue whales are estimated to be left in the wild?
26) What is the loudest animal on earth?
27) What color is whale feces?
28) What type of mammals are whales?
29) How do whales breathe?
30) How many stomachs do Baird's whales have?