Fruit flies (Tephritidae) are the most agriculturally important family of flies. Some species are pests, together causing billions of dollars in losses annually, whereas other species are beneficial biological control agents of weeds. Fruit flies are also among the most attractive and biologically interesting Diptera, having patterned wings and often brightly colored and/or patterned bodies, which may be used in mimicry of jumping spiders or wasps and in elaborate courtship and other behaviors.

It is Evolution which make these fly to have spider image on these wing to save themself from predictors. The image on the wing is absolutely perfect,” says Dr Brigitte Howarth, the fly specialist at Zayed University who first discovered G tridens in the UAE. The species has been known since 1910, and is found in the Near and Middle East, Asia, and Asia

On July 10th, 1913 the weather observer at Greenland Ranch in Death Valley, California recorded a high temperature of 134°F (56.7°C). This is the highest reliably recorded air temperature on Earth.

Death Valley's record temperature of 134 degrees Fahrenheit (56.7 degrees Celsius) - the hottest ever measured on Earth - was set exactly 100 years ago. But the tale of how the rocky expanse of California desert came to be known as the world's hottest place involves a lengthy stretch in the number two slot, a mission to set the record straight, and a scientist who disappeared amid a revolution.