Craving salt?

Tuesday, June 17, 2014 by Molly Meserve

While humans have five primary tastes (salty, sweet, sour, bitter, and savory), scientists published an article recently that found cetaeceans (whales and dolphins) can only taste one: salt.

Why is this important you ask? Well, many natural toxins have a bitter taste. If whales and dolphins can only taste salt, what does this mean for their future safety? Why do you think cetaceans evolved this way?

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