Elon Musk’s brother Kimbal Musk once bit flesh off his hand, biography reveals
American author and journalist Walter Isaacson wrote about the incident in his new book Elon Musk, a biography of the tech billionaire.
Elon Musk’s brother Kimbal Musk once bit off a piece of flesh from the Tesla CEO’s hand during a fight. As per reports, American author and journalist Walter Isaacson mentioned this incident in his biography called Elon Musk.

About two decades ago, Kimbal bit Elon during a fight about their then-startup Zip2, Isaacson wrote in his book, reports Business Insider. Kimbal did so as he thought his brother was going to “punch him in the face.” Elon was later rushed to hospital where he received stitches and a tetanus shot.
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Zip2 is a former American technology company founded by the Musk brothers. It was operational from 1995 to 1999. “The brothers often had ‘rolling-on-the-office-floor fights’ while they worked together at Zip2, their company that provided city guides to newspapers. Because Zip2 didn't have private offices, other staff had to watch the two fight,” reads an excerpt from Isaacson’s book, reports Business Insider.
The author also talked about the “volatile relationship” between the Musk brothers in his book. “I love, love, love my brother very much, but working with him was hard,” reads a quote from Kimbal as mentioned in the book. Kimbal opened up about the disagreements he often had with his brother while working with him, including their fight about the name of their joint startup - Zip2.
In his book Elon Musk, a biography of the world’s richest person, Walter Isaacson brings into light the unseen side of the Tesla CEO, reports the New York Times. The author shadowed Musk for nearly two years, including sitting in meetings and engaging in interviews to write the story of the billionaire entrepreneur.
ABOUT THE AUTHORTrisha SenguptaTrisha Sengupta works as Chief Content Producer at Hindustan Times with over six years of experience in the digital newsroom. Known for her ability to decode the internet’s most talked-about moments, she specialises in high-engagement storytelling that bridges the gap between viral trends and traditional journalism. Throughout her tenure, Trisha has focused on the intersection of technology, finance, and human emotion. She frequently covers personal finance and real estate struggles in hubs like Gurgaon, Bengaluru, and Hyderabad, while also documenting the unique challenges of the NRI experience. Her work often highlights the movements and philosophies of global newsmakers and personalities like Elon Musk, Mukesh Ambani, Nikhil Kamath, Dubai crown prince, and MrBeast. From reporting on Amazon or Meta layoffs and startup culture to the emergence of AI-driven platforms like Grok and xAI, she provides a grounded and empathetic perspective on the stories shaping our world. When not decoding the internet, Trisha is likely offline: lost in a book, exploring a historical ruin, or navigating the world as a solo traveler. She balances her fast-paced career with family time and a healthy dose of curiosity, currently trading her "human" sources for silicon ones as she masters AI to future-proof her storytelling.Read More

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