You know that antibacterial soap you use?

It's winding up in the environment.

Triclosan, an antibacterial chemical found in everyday bathroom and kitchen products, is accumulating in dolphins at concentrations known to disrupt the growth and development of other animals.

Whatever happened to good, old fashioned soap? Ivory Soap folks. Ivory Soap.

So how does it work (in disrupting development)?

Triclosan is strikingly similar to thyroid hormone, so it might bind to hormone receptors, said Helbing, author of the frog study. Because frog and mammal endocrine systems are similar, triclosan can potentially “affect how hormones work in ways that aren’t intended” in dolphins, and maybe even humans, she said. Altering thyroid function in humans and animals might cause abnormal brain development and other developmental defects.