Is Liz Bonnin the new David Attenborough?

The first time Liz Bonnin encountered Sir David Attenborough in his natural habitat was at a primate conference 15 years ago. “I stuttered when I spoke,” she says, wincing at the memory. “I felt like I was back at school and in trouble with the headmaster.”

The next notable occasion was two years ago at a television awards in Bristol, and Bonnin mentioned both wildlife presenters had recently been in the same deep ocean submersible (her in Galapagos; he in the Great Barrier Reef). “It was the first time I was able to hold a conversation with him fairly decently,” she recalls...