Why do ladybugs have different amount of spots?

The spots are just part of the ladybug's clever color scheme. Ladybugs produce alkaloids, toxic chemicals that make them unpalatable to hungry spiders, ants, or other predators.

Explanation:

On the third day after Ahab finally sights Moby Di.ck, the great whale attacks the boat. Moby Di.ck rams the Pequod and sinks it. Afterwards, Ahab is caught in a harpoon line, resulting in his death. The sinking ship creates a vortex which begins sucking in everything that surrounds it, including the remaining whaleboats and men. The only survivor of this catastrophe is Ishmael.