A group of scientists and volunteers released seven silvery blue butterflies in San Francisco’s Presidio on Tuesday in an effort to add a hint of new life to a biodiversity-constrained world. The ...

a little blue butterfly, that flew, feeding on a specific host plant called deer weed. It's a pea family plant with an orange and red flower. Those plants didn't have the dunes to live in ...

All the butterflies were dead by Aug. 25. According to the Environment Ministry’s red list on endangered species, the Ogasawara blue butterfly was categorized as “Critically Endangered ...