Beautiful Tortoiseshell Butterfly Recolonizes England Decades After Elm Disease Had Eliminated it

Beautiful Tortoiseshell Butterfly Recolonizes England Decades After Elm Disease Had Eliminated it

The butterfly-mad British are celebrating what seems to be a permanent return of this large and spectacular species after Dutch elm disease killed it off from the island. Unlike the small tortoiseshell butterfly, the large tortoiseshell butterfly hasn’t been a resident of the UK since the 1960s, but after several years of continuous widespread sightings, […]

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Scientists to attempt to rear swallowtail butterflies from eggs frozen in nitrogen

Scientists to attempt to rear swallowtail butterflies from eggs frozen in nitrogen

Researchers are to attempt to rear swallowtail butterflies from eggs frozen in liquid nitrogen in a test to see whether cryopreservation could support the long-term conservation of Britain’s largest native species. In a groundbreaking project, researchers will freeze eggs of captive-bred European swallowtails in liquid nitrogen at -196C and attempt to rear butterflies from the […]

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Mass Die-Off of Western Monarch Butterflies Linked to Pesticides, Study Finds

Mass Die-Off of Western Monarch Butterflies Linked to Pesticides, Study Finds

A new peer-reviewed study has linked pesticides as a likely cause to a mass die-off of Western monarch butterflies that occurred in 2024. In January 2024, researchers found hundreds of dead or dying monarch butterflies near the Pacific Grove Monarch Sanctuary in California, where Western monarch butterflies typically overwinter. As The Guardian reported, researchers found […]

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