Researchers believe this may be an isolated population from an ancestor species that went extinct everywhere else.

More than 1,000 heath fritillaries have been recorded so far this year on the National Trust’s Holnicote estate in Somerset. This is a significant rise from around 600 at the same time last year. The ...

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Here, they also have a front-row seat of Newberger’s award-winning butterfly garden thriving at an elevation of 5,500 feet. Monarch butterflies lay eggs on showy milkweed. Pale swallowtail, echo azure ...

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