Bearded ladies: females suffer fitness consequences when bearing male traits by Lindsey Swierk, and Tracy Langkilde Biology Letters Volume 9(6):20130644.

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Bearded ladies: females suffer fitness consequences when bearing male traits by Lindsey Swierk, and Tracy Langkilde Biology Letters Volume 9(6): December 23, 2013 ©2013 by The Royal Society

Ventral surface of adult fence lizard (a) male, (b) female with male-pattern ornamentation, and (c) female without male-pattern ornamentation. Lindsey Swierk, and Tracy Langkilde Biol. Lett. 2013;9: ©2013 by The Royal Society

Reproductive traits—(a) number eggs laid, (b) clutch mass (grams), (c) laying date (Julian day), (d) per cent hatching success, (e) hatching date (Julian day), (f) clutch sex ratio (proportion of males to females)—of non-ornamented female fence lizards (uns... Lindsey Swierk, and Tracy Langkilde Biol. Lett. 2013;9: ©2013 by The Royal Society