CrowdScience

By BBC World Service

What's CrowdScience about?

We take your questions about life, Earth and the universe to researchers hunting for answers at the frontiers of knowledge.

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Why are fish fish-shaped?

09.30.2022

There are over 30,000 species of fish – that’s more than all the species of amphibians, reptiles, birds and mammals combined. But despite the sheer diversity of life on Earth, we still tend to think of all fish in roughly ...

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