Final answer:
The statement that birds are the only animals that migrate is not true, as many animal species, including mammals like wildebeests and marine animals like whales, also migrate over great distances.
Step-by-step explanation:
The statement that is NOT TRUE concerning migration is: "a. Birds are the only animals that migrate"
Migration is a common phenomenon found across many major groups of animals, not just birds. Examples include mammals like wildebeests that migrate over 1800 miles each year in search of new grasslands, and marine animals like whales that travel thousands of miles to warmer climates. Additionally, hummingbirds are known to migrate during the day, using the sun and other environmental clues as navigational aids. Red Knots are known for their long-distance migrations but are not the only species with impressive migratory patterns. Hawks, vultures, and other birds also utilize thermal hopping for daytime migration.