The well-studied segmentation cascade of Drosophila melanogaster represents a derived mechanism compared with that of other arthropods. The degree of conservation of genes that function in successive ...

Rusty red stains on the head of a fossilized segmented creature found in southwestern China are a paleontological record-breaker: They are the remains of the oldest arthropod brain ever found. The ...

Exquisitely preserved fossils left behind by creatures living more than half a billion years ago reveal in great detail identical structures that researchers have long hypothesized must have ...

During Earth’s Cambrian period 500 million years ago, the seas teemed with weird and fabulous critters. One of them, the radiodont, had a predatory appendage, toothy circular mouth and a segmented ...

Rare fossils preserving the brains of creatures living more than half a billion years ago shed new light on the evolution of arthropods. Exquisitely preserved fossils left behind by creatures living ...

Despite differences in shape and size all insects are characterized by a body organization that includes three units: a head, thorax and abdomen (panels A-B). In contrast all spiders (and other ...

An ancient worm unearthed in China has one of the oldest fossilized brains ever found. The brain's shape could also help solve a centuries-old debate about the evolution of arthropods. When you ...

The first study to evaluate the biodiversity of arthropods in US homes finds that humans share their houses with any of more than 500 different kinds of arthropods -- at least on a short-term basis.

The arthropod Arthropleura is the largest known arthropod ever to inhabit the Earth. The giant arthropod ‘Arthropleura', which roamed the Earth over 300 million years ago, combined traits of ...