(CN) — Long before they flew, the ancestors of insects crawled across the ocean floor. How they evolved wings is a question that’s been debated by scientists for more than a century. Some said wings ...

Originally proposed in 1974, the “dual origin” hypothesis suggests that insect wings actually began with a fusion of the two separate tissues: the dorsal body wall provided the membrane, while its ...

A little leg may reveal something big about how closely related insect species can drastically differ in body shape, according to a new study. The team imaged live cells of fruit flies in the last ...

Dec. 1 (UPI) --Combining old studies with novel genomic analysis, researchers have finally figured out how insects first developed wings. According to a new paper published Tuesday in the journal ...

For decades, researchers have tried to understand how insect wings evolved. It seemed that none of the proposed explanations was complete. Now the question may finally have been answered. Using data ...

Beetle wings are often hidden. Nestled behind armored shields on the beetle's back, they unfurl in whirring sheets, whisking their clumsy owners from danger. Beetles don't have more than two sets of ...

Insects incorporated two ancestral crustacean leg segments (labeled 7 in red and 8 in pink) into the body wall. The lobe on leg segment 8 later formed the wing in insects, while this corresponding ...

A beetle larva with a chorus line of legs is spotlighting the evolutionary steps that insects took to get from multilimbed centipedes to the six-legged specimens common today. Evolving from millipede ...

Scientists have pinpointed a key gene that controls segmentation during spider development, which reveals a further similarity to the control of segmentation in insects. Scientists have pinpointed a ...

Most of the volume of epithelial cell bodies containing nuclei are aligned as a monolayer on the apical (upper) side. They extend pillarlike cell processes in a basal (downward) direction. At the ...