Every so often, unseasonably mild weather will rouse butterflies from hibernation earlier than usual in the Inland Northwest. But in January? That’s plain extraordinary.

In the early 1990s, Keith Willmott and a friend, both undergraduate students from the United Kingdom, arrived in Ecuador with ...

After realizing I couldn’t name most of the plants in my neighborhood, I downloaded a plant identification app. It was a great way to connect with my surroundings. “Plant identification starts when we ...

Butterflies closer to the equator have been shown to evolve shared wing patterns faster than their relatives at higher latitudes. That gradient reframes tropical diversity as an active process, shaped ...

The St. Francis Satyrs now number around 1,000 and are found in an area of less than 20 acres. Melissa McGaw Nick Haddad is a tall, quick-to-smile Minnesotan. But lest the easy grin fool you, he is ...

The Western monarch population has plunged more than 95% since the 1980s, and has a more than 99% chance of extinction by 2080. Western monarchs primarily spend winters along the California coast.

How five proposed Trump Administration changes threaten protections for struggling species in the San Francisco Bay Area.

More than 300 brown hairstreak butterfly eggs were recorded in hedgerows near Llandeilo this winter after decade of decline ...

BANDERA COUNTY — Mid-sentence, Grace Waggener stopped short and pointed. “Butterfly, butterfly, butterfly!” she called out. Waggener and Tom Collins leaned over to inspect the insect, which was ...

Climate warming reduces nectar quality in flowers, leaving migrating monarch butterflies with less energy to survive winter.