The function of appendage patterning genes in mandible development of the sexually dimorphic stag beetle. Developmental Biology , 2017; 422 (1): 24 DOI: 10.1016/j.ydbio.2016.12.011 Cite This Page : ...

Collaborative Japan-US research coordinated by Nagoya University has now shed light on the genetic control of stag beetle mandible development. The study was published in Developmental Biology.

Mouthparts can be highly modified, as in the straw-like maxillae of butterflies, or exceptionally enlarged, as in the mandibles of stag beetles that are used for fighting rather than feeding. However, ...

Unfortunately, there’s a tradeoff. Researchers in Japan discovered that beetles with longer mandible weapons have smaller testicles and less ejaculate than their brethren. In a paper published ...

They found diminished mandible size when expression of the peptide was suppressed, and that it was specifically expressed in the "fat body", where beetles store nutrients. This has important ...

This is because the force generated by muscles in the beetle's head has to be transferred down to the end of each jaw, or mandible. So, just like a very long lever, the force has to work over a ...

Importantly, this exquisitely preserved beetle (Cretoparacucujus cycadophilus) exhibits physical characteristics consistent with pollination, namely mandibular cavities, which it likely used to ...

A gynandromorphic Japanese stag beetle is seen in this photo provided by the Gunma Prefecture-run Gunma Insect World. A gold-colored Japanese tree frog is seen in this photo provided by the Gunma ...

began to notice almost all of the thousands of tiger beetles he collected and preserved exhibited a chirality, or dominance, of the left mandible. “Chirality refers to something like handedness ...