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The great tit bird is less attractive due to exposure to heavy metals


PhysOrg

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Heavy metals, the result of contamination, may be toxic for animals to the extent of affecting their reproduction and physiology. This is the case with the great tit, a species of bird whose plumage colour is affected either negatively or positively depending on exposure to certain contaminating substances. Mercury, copper and chrome may cause the male great tit to be less attractive to the females.

 

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