World's biggest bee

"Amid such a well-documented global decline in insect diversity, it's wonderful to discover that this iconic species is still hanging on."

Latest videos

Which came first: the chicken or the egg?

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Video: Which came first: the chicken or the egg?

Why do flightless birds have wings?

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Video: Why do flightless birds have wings?

Australia's longer bushfire season

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Video: Australia's longer bushfire season