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Chemicals linked to problems with otters' penis bones
http://www.bbc.co.uk/nature/21534742
Otters' reproductive organs may be affected by chemicals in our waterways, according to scientists.
Experts studying the reproductive health of the mammals in England and Wales were concerned to find a decrease in the weight of otters' penis bones.
Other health problems in males included an increase in undescended testicles and cysts on sperm-carrying tubes.
Experts suggest that, based on previous research, the changes could be linked to hormone-disrupting chemicals.