Explanation for why we don’t see two-foot-long dragonflies anymore fails

The problem with diffusion is that it’s notoriously slow. The oxygen constraint hypothesis argued that the larger the insect ...

Why don't giant prehistoric insects still exist?

Three hundred million years ago, dragonfly-like creatures with wingspans stretching 70 centimeters patrolled the skies of a ...
Earth.com

Earth's first insects were massive, some having wingspans over two feet long, and scientists aren't sure why

Scientists rethink why giant insects once ruled the skies, finding oxygen may not explain their size or disappearance.

Massive insect body size 300 million years ago may not have been due to high atmospheric oxygen

Three-hundred-million years ago, Earth was very different. The continents had coalesced into Pangea, which was dominated in ...
EurekAlert!

Variable circularly polarized light reflector combining circularly polarized light-reflection by insect exoskeletons with a conductive polymer

Tsukuba, Japan—Some beetles, such as Anomala albopilosa, strongly reflect left circularly polarized light (electromagnetic waves that oscillate leftward relative to the direction of light reception).
Discover Magazine

Giant Dragonflies With 2-Foot Wingspans Ruled the Skies 300 Million Years Ago — But Oxygen May Not Explain Why

Learn how ancient oxygen levels in the Paleozoic era were linked to giant insect size, and why that theory is now being ...
KHON2

Insect exoskeletons linked to new weight loss discovery

HONOLULU (KHON2) — Would you eat insects? A new study has found that the exoskeletons of insects can induce weigh loss in mice. But what about humans? Get Hawaii’s latest morning news delivered to ...