Tessaratomidae is a family of true bugs, similar in appearance to the more common shield/stink bugs of the family Pentatomidae. Larger species are known informally as giant shield bugs or giant stink bugs and are sometimes quite colourful. Their nymphal forms are often very colourful also and usually bear little resemblance to the adult.
Shown is a selection of local Yunnan Tessaratomid nymphs of varying species and instar stages.
Researchers from the Univ. of Alberta are abuzz after using fruit flies to find new ways of taking advantage of caffeine’s lethal effects on cancer cells — results that could one day be used to advance cancer therapies for people.
Previous research has established that caffeine interferes with processes in cancer cells that control DNA repair, a finding that has generated interest in using the stimulant as a chemotherapy treatment. But given the toxic nature of caffeine at high doses, researchers from the faculties of medicine and dentistry and science instead opted to use it to identify genes and pathways responsible for DNA repair.
These spectacular macro photos capture seemingly foreign underwater worlds, in a shocking variety of colours. LA-based photographer Felix Salazar took these photos in his salt water aquariums, experimenting with focus and light to get the perfect image—so although the madly radiant colours and mesmerising textures make the photos seem like digital renderings, each one depicts real coral. Many people think coral just comes in various shades of pink, but in fact, the plant-like marine life comes in a myriad of subclasses. They boast a resplendent spectrum of vibrant colour and beautiful textures, from bead-like polyps to blooming, flower-like bouquets.
The Hawaiian Bobtail Squid, Euprymna scolopes, has a clever way of duping predators during its nightly activities. It uses a symbiotic luminescent bacteria, Vibrio fischeri, to light up its underside, so that upwards-looking predators don’t see a dark, edible form silhouetted against a moonlit or starlit sky. Instead, hungry sharks or other fish see only sky. The squid is invisible. This little magnificent beast helps us understand how our own bacteria symbiosis works. Kudos to you, beautiful squid!