909 / Tentacles are the brain to an octopus
Tentacled aliens from outer space are familiar to us from science fiction, but the octopus may be as alien an intelligence as we [...]
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908 / It is a spooky world for a horse
Horses have both binocular vision and monocular vision. Binocular vision is used when their eyes and ears are focused on something in front [...]
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907 / Better scream; do not speak!
People can express emotions, such as happiness or sadness or anger, in two ways — through mere sounds (vocalisation) or through words (language). [...]
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906 / Finding how old are our body cells
Cells divide. Cells divide and replace old or damaged cells. This is why biologists wonder how old are cells in our body, in [...]
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