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Penis bones (xương dương vật) of otters (con rái cá) in Canada are weakening due to the oil industry's toxic chemicals (chất độc hóa học) tricking into (rò rỉ) nearby rivers.

A team from McMaster University found that hydrocarbon contaminates (nhiễm bẩn) from such operations are decreasing density and making the bones more breakable (dễ gãy).

Researchers analyzed otters near and outside crude oil hubs in Alberta, finding that those living near the sites had brittle (dễ gãy) phallus (thuộc dương vật) bones.

Frail (yếu đuối, mong manh) penis bones could disrupt the marine animal’s population as well has have the same impact on humans, experts warn.

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