Elon Musk was frustrated with Twitter Inc. when he tweeted in 2022 that his offer to buy the company was “temporarily on hold,” but his team continued to work behind the scenes to make it work, his main financial adviser testified.

A familiar rivalry surfaced online this week, sparked by an image that seemed deliberately out of place. Jeff Bezos posted a picture of a large tortoi.

The founder of Amazon, Jeff Bezos, does not often post on the social media site owned by his rival Elon Musk. But on Monday, Bezos did, sharing a black-and-white image of a turtle emerging from the shadows on X. The photo, which included no text, may have ...

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