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rivulus
[ riv-yuh-luhs ]
noun
, plural riv·u·lus.
- any of several killifishes of the genus Rivulus, native to small streams of tropical America, often kept in aquariums.
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Example Sentences
Turko co-authored a recent study on the mangrove rivulus, a fish that leaps on land when its tropical waters get too warm.
From National Geographic
A number of amphibious fish have the ability to catapult onto dry land, but the rivulus lives in the tropics and subtropics, where humidity is high and water and air temperatures are roughly the same.
From National Geographic
For instance, mangrove rivulus “have specialized skin that takes on many of the roles of gills,” such as maintaining salt levels, Turko says.
From National Geographic
But many fish, like the mangrove rivulus, have adaptations that let them breathe air.
From National Geographic
So it makes sense for the rivulus and other amphibious fish to find cooler ground, he says.
From National Geographic
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