The Gray Whale
The gray whale, which is sometimes observed with barnacles encrusted throughout its skin, has a life expectancy of up to 80 years. If they live long enough, they can weigh up to 90,000 pounds and grow to be 49 feet long. One is clearly larger than the other when compared to the passengers aboard the boat.
Literally Batman
These tropic-dwelling critters, often called flying foxes or fruit bats, are about the size of a man yet feed on fruits, plants, and insects. Surprisingly, rather than echolocation, these bats rely mainly on eyesight.