Dogs act like toddlers when you need help - but cats just watch. Scientists compared 3 groups: pet dogs, cats, and human toddlers in an experiment where a human parent hides and pretends to look for an object. 75% of dogs and children helped. Cats only helped if it was in their personal interest.

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But his big breakthrough came with Whitesnake in 1978 - going on to record eight massive-selling albums and playing at packed out festivals and arenas around the world.

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