A killer whale's coloration is a form of camoflage called 'countershading'. When viewed from above, the orca's black back helps it blend into the dark water; when viewed from below, the white belly helps it blend into the light from the surface. In addition, the darker coloring of the back might protect against UV damage from the sun.
it would look like light brown hair on top and dark brown on the bottom
bottom
yes domestic cats do have non white or red on top and dark on the bottom
They use there skin
It is usually on the bottom of the traffic light.
A bull shark
In North America, it's on the bottom.
Think of it like this..... If a predator is looking down from the sky, the dark top of the frog will blend well with the ground and dark waters. And if a predator under the water looks up to the surface, the bottom of the frog would blend well with the sky. So frogs have light bottoms and dark tops so they can blend well in their surroundings and be safe from most predators! :)
A frog is split into two colors. The top portion (dorsal) is dark so it can avoid predators looking for an easy meal. The bottom portion (ventral) is light so it can find food without being spotted.
Brown on top, dark brown to black on the bottom.
Aha! A sparkler burns top to bottom only because you light the top. If you lit the bottom, it would burn bottom to top. If you lit the middle, it would burn both directions from the middle.
it helps them camouflage into the water. if you look at them from above, they're hard to see b/c the black blends in with the dark water. if a predator looks at them from below, it is hard for them to be seen b/c the white blends in with the sunlight above them.