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Any of various fishes that bear live young, especially those of the subfamily Poeciliinae, which includes the guppy and the mollies.

live′-bear′ing adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend: - producing living young (not eggs)
zoological science, zoology - the branch of biology that studies animals
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
"Rays are live-bearing (viviparous) while skates are egg-laying (oviparous), releasing their eggs in hard rectangular cases sometimes called 'mermaid's purses,'" the museum stated, adding rays have spines on their tails while skates do not.
The 248-million-year old fossil of an ichthyosaur suggests that live-bearing evolved on land and not in the sea," Dr.
In addition to the regular use Aristotle makes of the 'four-footed, live-bearing' and the 'four-footed, egg-laying' kinds in the organization of the zoological works, History of Animals II 15 is thought to be the best evidence that he thinks of both of these as greatest kinds.
The study noted that live-bearing lizards, as opposed to those that lay eggs, are particularly at risk.
It is a small member of the Poecilidae family (females 3cm long, males 2cm) and like all other members of the family, is live-bearing. In its natural environment in South America and the Caribbean, guppies are often found as isolated breeding populations.
(2000) recently reported male-biased sex ratios in embryos of the marine live-bearing eelpout, Zoarces viviparous, exposed to paper mill effluent off the coast of Sweden.
Then, Michael Bull of Flinders University in Adelaide, Australia, reported that some of Australia's big, live-bearing skinks are monogamous.
Ecology and evolution of live-bearing fishes (Poeciliidae).
They selected live-bearing guppies for large and small brains relative to the size of their bodies.
The find is important because "it means that an advanced form of reproduction involving copulation and live-bearing was more widespread than previously thought."
The other species on the list include the very tiny (a snake just a slither longer than 4 inches or 104 millimeters), the very long (an insect from Malaysia with an overall length of 22.3 inches or 56.7 centimeters) the very old (a fossilized specimen of the oldest known live-bearing vertebrate) and the very twisted (a snail whose shell twists around four axes).