: one of two or more species that are nearly indistinguishable morphologically
Examples of sibling species in a Sentence
Recent Examples on the WebThis research suggested that T. rex should have two sibling species -- a more slender Tyrannosaurus regina (tyrant lizard queen) and the stouter and toothier Tyrannosaurus imperator (tyrant lizard emperor).—Katie Hunt, CNN, 25 July 2022 The study team’s conclusion was that T. rex was not a single, unchanging dinosaur but may have had two equally terrifying sibling species.—Katie Hunt, CNN, 28 Feb. 2022
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sibling species.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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