Feb. 17 (UPI) --What makes a new species unique? When does a subspecies become a species? Recently, researchers at Utah State University sequenced the genomes of more than 1,000 stick insects in an ...

Stick insects make a certain amount of sense, evolutionarily speaking. They look like sticks, or twigs, or leaves; thus camouflaged, they presumably have a better chance of avoiding predators, ...

Understanding the material basis of adaptive evolution has been a central goal in biology dating back to at least the time of Darwin. One focus of current debates is whether adaptive evolution relies ...

Most stick insect species blend into their surroundings to avoid predators. But the males of two newly described species from madagascar, Achrioptera manga and Achrioptera maroloko, are brightly ...

Stick insects look just like the naturally-occurring sticks and twigs that surround them in a forest. This is an aesthetic feature that helps them evade predation more effectively than other insects.

Biologists discuss findings from an investigation of genetic mutations in seven species of North American stick insects (Timema) resulting in cryptic coloration. Traits that form an organism's ...