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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The geology in this area of the North Sea is well-suited for CO2 storage, says Schovsbo. The rock has a large number of pores, or small cavities, that can hold the CO2.

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