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How do octopuses swim, change colour and texture?

How do octopuses swim, change colour and texture?

alexandra reid

Why do we want to know how the universe was made?

If scientists know how the universe is made then what will happen from that – what kind of benefit would they get from it?

Navjot

at what rate are stars being consumed by the black hole at the centre of the Milky Way galaxy?

At what rate are stars being consumed by the black hole at the centre of the Milky Way galaxy?

steve w

How fast do hummingbirds flap their wings?

How fast do hummingbirds flap their wings?

becky

Why is a killer whale called a killer whale when its actually a member of the dolphin family?

Why is a killer whale called a killer whale when its actually a member of the dolphin family?

Zazza

What greenhouse gases would change if there were no humans?

What greenhouse gases would change if there were no humans? And how?

Karisma
auckland

5-14years

Does the brain control emotions?

We all have a broad range of emotions. Am I correct in believing that each emotion has an evolutionary significance? If so is each of our emotions controlled by chemicals in the brain?

Richard Shepherdson