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Plants & Animals Dec 23, 2024

What do insects do all winter?

You are standing in a forest in the middle of winter and the temperature has dropped below zero. The ground is covered in snow and the trees and bushes are naked. The insects that normally fly or crawl in warmer weather are ...

Ecology Dec 19, 2024

Federal protection for monarch butterflies could help or harm this iconic species, depending on how it's carried out

Monarch butterflies are among the most beloved insects in North America. They are brightly colored and unique, both as caterpillars and later as mature insects. Monarchs are found in every U.S. state except Alaska, so nearly ...

Ecology Dec 11, 2024

US moves to save once-common monarch butterflies from extinction

The United States is moving to grant federal protection to the monarch butterfly—a once-common species recognizable by its striking black and orange patterns that has faced a dramatic population decline in recent decades.

Plants & Animals Dec 6, 2024

Unlike other insects, desert ants may use polarity of geomagnetic field for navigation

Desert ants of the Cataglyphis nodus species use the Earth's magnetic field for spatial orientation, but these tiny insects rely on a different component of the field than other insects, a research team led by Dr. Pauline ...

Evolution Dec 6, 2024

A microRNA solves an evolutionary mystery of butterfly and moth wing coloration

Lepidopterans (butterflies and moths) exhibit a splendid diversity of wing color patterns, and many species display black and white, or dark and bright, wing color pattern variants associated with the presence and absence ...

Plants & Animals Nov 20, 2024

Can sown wildflowers compensate for cities' lack of natural meadows to support pollinating insects?

In a study published in Ecological Entomology, researchers assessed whether a shortage of natural meadows in urban spaces for pollinating insects might be addressed by creating meadows where wildflowers are planted or sown ...

Plants & Animals Oct 18, 2024

Butterfly brains reveal the tweaks required for cognitive innovation

A species of tropical butterfly with unusually expanded brain structures displays a fascinating mosaic pattern of neural expansion linked to a cognitive innovation.

Plants & Animals Oct 18, 2024

Scientists create new overwintering sites for monarch butterflies on a warming planet

The migration of the monarch butterfly is one of the wonders of the natural world. Each autumn, a new generation of monarch butterflies is born in the northern United States and southern Canada. Hundreds of millions of these ...

Plants & Animals Oct 15, 2024

The monarch butterfly may not be endangered, but research suggests its migration is

With vigorous debate surrounding the health of the monarch butterfly, new research from the University of Georgia may have answered the biggest question plaguing butterfly researchers. Why are the wintering populations declining ...

Plants & Animals Sep 27, 2024

Ailing New Zealand butterfly collector gives away life's work

A New Zealand enthusiast spent half a century amassing one of the world's largest private butterfly collections. As death nears, he has handed this life's work of 20,000 specimens to a museum.

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