The story is called Whales: Giants In Danger by Andre Admas. How does the author develop the idea that Whales are enormous?

Whale sounds are used by whales for different kinds of communication. The mechanisms used ... Though a large pod of dolphins will produce a wide range of different noises, very ... Baleen whales (formally called mysticetes) do not have phonic lip structure. ... History[edit] ... Payne Roger, quoted in: Author(s): Susan Milius.

Missing: Giants ‎| Must include

Explanation:

The mechanisms used to produce sound vary from one family of cetaceans to another. Marine mammals, such as whales, dolphins, and porpoises, are much more dependent on sound for communication and sensation than are land mammals, because other senses are of limited effectiveness in water. Sight is less effective for marine mammals because of the particulate way in which the ocean scatters light. Smell is also limited, as molecules diffuse more slowly in water than in air, which makes smelling less effective. However, the speed of sound is roughly four times greater in water than in the atmosphere at sea level. As sea mammals are so dependent on hearing to communicate and feed, environmentalists and cetologists are concerned that they are being harmed by the increased ambient noise in the world's oceans caused by ships, sonar and marine seismic surveys.[2]

a dictionary is the correct answer

dude, * is in your own words, not mine.

* = the answer