7 · en
Short, simple sentences with “fins”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
Fish are aquatic animals that have scales and fins.
The dolphins were moving alongside us like living yachts, their dorsal fins effortlessly slicing through the warm waters.
The bodies of some aquatic animals have adaptations for locomotion (hydrodynamic body shape, fins, tails, etc.) and gills for respiration.
Aquatic animals show adaptation to the environment in their bodies, such as the fins of fish or the membranes between the toes of frogs (interdigital), which allow them to move easily in the water.
The other bits - tails, fins and all - were fried with potato chunks, heavily salted, and wrapped in the now cheap newspaper. The result was the world's first greasy, cheap and wildly popular fast food, fish and chips.
They began to dive and stir with their fins the black silt, which rose behind them like the smoke of an oil fire and cancelled out the visibility of the water. But they were oblivious to this; they moved on, concentrating on the passage ahead.
In evolution, animals came out of the water and had to defend themselves from temperature variations and water loss by covering their bodies with feathers or hairs; by transforming their fins into legs to walk or jump, or by converting their gill breathing into tracheal breathing, like invertebrates, or pulmonary breathing, like vertebrates.
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