Why do Zebras and Tigers have stripes?

Camouflage -to help them hide. If a zebra or a tiger were in our backyard, you'd know it. But if you were in their neighborhood, you might miss them.Striped coats are hard to see in the light and dark shadows of forest and grasslands. this helps them safe from predators. Now you see them, now you not!

How fast do a Hummingbird's wings beat?

Fatser than you can see. Hummingbirds, the smallest feathered creatures on the planet, are also the fastest wing-beaters. The beating is so speedy it looks like a blur. With a slow motion cemra, it can almost be counted-50-75 beats per second! Hummi8ngbirds can even fly backwards, something no other birds can do.

What's the diffrence between an insect and a spider?

look out for the legs. Spiders have eight. Insects have six. Also check out the antennea. Insects have them and spiders don't. Up close (if you dare), look at the number of body parts. Insects have three. Spiders have two. And if the animal is hanging by athred, it's a spider. Spider make silk, insects don't.

What's the diffrence between a dolphin and a porpise?

Thier facail structure and body size. Both are mammals, not fish, and have to breadthe above water. Both are rlated to whales, but are smaller. Dolphins can grow to 12 feet in length and have a beak. Porpise are beakless and are usally between three to six feet long.