BIRKENHEAD, ENGLAND - SEPTEMBER 26: Catherine, Duchess of Cambridge officially names the RSS Sir David Attenborough during the naming ceremony for The on September 26, 2019 in Birkenhead, England. (Photo by Anthony Devlin/Getty Images)
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BIRKENHEAD, ENGLAND - SEPTEMBER 26: Catherine, Duchess of Cambridge officially names the RSS Sir David Attenborough during the naming ceremony for The on September 26, 2019 in Birkenhead, England. (Photo by Anthony Devlin/Getty Images)
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BIRKENHEAD, ENGLAND - SEPTEMBER 26: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the naming ceremony for The RSS Sir David Attenborough on September 26, 2019 in Birkenhead, England. (Photo by Anthony Devlin/Getty Images)
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BIRKENHEAD, ENGLAND - SEPTEMBER 26: Catherine, Duchess of Cambridge speaks with Sir David Attenborough as Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge and Sir David Attenborough attend the naming ceremony for The RSS Sir David Attenborough on September 26, 2019 in Birkenhead, England. (Photo by Anthony Devlin/Getty Images)
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