This is the best summary I could come up with:

Most British butterflies are adapted to surviving gruelling, cold, wet, capricious summers, which is why many of them are small and brown.

But with tigerish stripes, dashes of iridescent blue and red, and dapper tails, this magnificent animal looks like it escaped from a tropical butterfly house.

It’s what happens when much of your habitat is destroyed and you’re isolated on small pockets of wetland that are home to the only plant (milk parsley) your caterpillars will eat.

Over the years, natural selection favours this choice and so the British swallowtail is smaller and more slender than its robust continental cousin.

Seas are rising, the east coast is eroding, and salt water is increasingly seeping and being washed by floods into the Broads.

As the British subspecies dies out, global heating is pushing its continental cousin across the Channel and on to the south coast more and more.

The original article contains 489 words, the summary contains 148 words. Saved 70%. I’m a bot and I’m open source!