Mark Cuban says he's planning to leave 'Shark Tank' to spend more time with his kids

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Shark Tank host Mark Cuban
Mark Cuban joined as a series regular on season three of ABC's "Shark Tank."

Christopher Willard/Getty Images

I dedicated my life to biology until I went on 'Naked and Afraid' and realized I could make a bigger difference doing TV instead

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Forrest Galante holding a Fernandina Giant Tortoise
This female Fernandina Giant Tortoise is nicknamed Fern.

Forrest Galante

I'm the CEO of a nuclear-fusion company, but starting out was tricky because I got famous on a reality-TV show about rich kids

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Side by side images show Richard Dinan, a caucasian blonde man with shoulder length hair, appearing at a press event in 2012 on the left, and him fixing a component of a rocket engine on the right.
Richard Dinan, CEO of Pulsar Fusion, shown left at a press event around the time he appeared in "Made in Chelsea" on the left, and shown next to a component of a rocket engine on the right.

Nick Harvey/WireImage/Getty Images; Pulsar Fus

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