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Wings may have evolved from appendages on the sides of existing limbs, which already had nerves, joints, and muscles used for other purposes. These may initially have been used for sailing on water, or to slow the rate of descent when gliding. Two insect groups, the dragonflies and the mayflies, have flight muscles attached directly to the ...
Helicopsychidae (snail-case caddisflies) are a family of Trichoptera. [1] The name refers to the helix shaped larval cases and they should not be confused with Limnephilidae which sometimes inhabit the snail shells. [1] Their shells range from 6–8 millimetres (0.24–0.31 in) and are crafted from mineral grains. [1]
The common slow worm, i.e. the species Anguis fragilis, is often called simply "slow-worm", though the entire species complex Anguis is also called "slow-worms". Common slow worms are semifossorial [2] (burrowing) lizards, spending much of their time hiding underneath objects. The skin of slow worms is smooth with scales that do not overlap one ...
Life expectancy in the United States is rising nearly as quickly as it fell at the start of the Covid-19 pandemic as deaths from Covid-19 and drug overdoses drop. After falling 2.4 years between ...
An "amphibious mouse" with partially webbed feet that eats aquatic insects was among 27 new species discovered during a 2022 expedition to Peru's Amazon, according to Conservation International.
The snail feeds on a variety of plants, including economically important crops such as bananas, lettuce, peanuts, and peas. [5] There are also possible public health ramifications of the spread of the snail as an invasive species: it is a carrier of the parasitic rat lungworm, which causes angiostrongyliasis, which in turn is the most common cause of the eosinophilic meningitis or eosinophilic ...
A 76-year-old patient sitter has been sentenced for assaulting a 68-year-old man with the remote control for a hospital bed. On Tuesday, Dec. 10, Eleanor Flowers, of Washington, D.C., was ...
In aerobatics, the cobra maneuver (or just the cobra), also called dynamic deceleration, [1] among other names (see Etymology), is a dramatic and demanding maneuver in which an airplane flying at a moderate speed abruptly raises its nose momentarily to a vertical and slightly past vertical attitude, causing an extremely high angle of attack and making the plane into a full-body air brake ...