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do fish sleep

Fish do go to sleep, but in a rather different way to humans. ... read more

mating and reproduction in animals

Mating ... read more

stars

On a clear night, you can see thousands of stars shining in the sky. From Earth, they seem to be small points of light. Yet many of them are larger than our Sun. There are far more stars in space than you can see with the naked eye. There are so many that you could never count them all. Our Sun is a m... read more

how we use animals

Humans use animals for a wide variety of purposes. Animals such as dogs, cats, and hamsters can be family pets. Horse racing and dog shows can provide entertainment for people. Scientists study animals. Some animals are eaten as food. Humans use many different products made from animals. Farmers raise... read more

welcome to venus

The hellish world often described as Earth’s evil twin. ... read more