Share the best reading 6.2 unit 1-6
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At the beginning of the Space Age, scientists were clueless about what would happen to humans in space.
So animals were sent into space to see how they would be affected by space flight.
They were chosen because they are more similar to humans than you imagine.
But the first real space traveler was Laika, a Russian dog.
Ham the chimpanzee flew in an American space capsule in 1961 and returned safely.
NASA astronaut Alan Shepard made the same journey later and became the first American in space.
They might seem creepy to you, but some people keep insects as pets.
In many countries, crickets are a symbol of good luck.
In Europe, having crickets in the kitchen is lucky.
Crickets are considered good fortune in Native American cultures, too.
Because pigs are clever, they are easily trained.
Potbellied pigs have been trained to play the piano, dance, and even ride skateboards!
Their scent glands are removed when they are babies.
A food chain shows how living things are linked through their food.
Producers produce their own food from air, water, and sunlight.
Consumers are organisms that eat producers or other consumers.
