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Lymnaea stagnalis, better known as the great pond snail, is a species of large air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae. The great pond snail is a model organism to study parasitology, neurology, embryonal development and genetic regulation.
The snail takes 30–40 days to hatch and is then considered young (before sexual maturity). Sexual maturity begins between 4 and 16 months after hatching. The snail is relatively fast moving at about 8 mm/s. [3] The snail has a light grey or brown body, with its lower tentacles being long and almost touching the ground.
Rectilinear locomotion relies upon two opposing muscles, the costocutaneous inferior and superior, which are present on every rib and connect the ribs to the skin. [5] [6] Although it was originally believed that the ribs moved in a "walking" pattern during rectilinear movement, studies have shown that the ribs themselves do not move, only the muscles and the skin move to produce forward ...
[49] [139] [140] The slow-moving Cuban false chameleon anoles ("Chamaeleolis") are specialized snail-eaters, [17] [141] and a few semi-aquatic species like the Cuban stream anole may catch prey in water such as shrimp and small fish. [7]
The rotation is fast, the golden wheel spider (Carparachne aureoflava) moving up to 20 revolutions per second, moving the spider at 1 metre per second (3.3 ft/s). [ 14 ] Coastal tiger beetle larvae when threatened can flick themselves into the air and curl their bodies to form a wheels, which the wind blows, often uphill, as far as 25 m (80 ft ...
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Nassarius fossatus, the channeled basket snail, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks.It is native to the west coast of North America where it is found on mudflats on the foreshore and on sand and mud in shallow water.
We might slow down to leave a low pressure path ahead, or speed up to pass one before it arrives.” The ‘Drake shake’ and broken plates Captains check the weather up to six times a day before ...