The Republic of Palau is an island country in the western Pacific, in free association with the United States. In one way or another, the country has been under US administration since it was established, and has never had its own separate currency - it has always used the US Dollar. However, Palau allows some foreign mints to issue coins under its authority; these are denominated in US Dollars but are only legal tender in Palau, so can in a way be considered to be in "Palau Dollars", even though such a currency does not officially exist.
The coins are usually dedicated to historical or general popular culture themes not related to the country itself. Many of them are in standard bullion sizes, including the internationally popular one troy ounce of silver.
The Hippos design is the third release in the Split Views collection by CIT Coin Invest.
The mint says about it:
The follow-up to the acclaimed American Alligator offers a rare look at one of the largest and most dangerous animals. The hippopotamus, commonly known as hippo, inhabits rivers, lakes, and mangrove swamps in Africa. Its name derives from the ancient Greek for "river horse". Despite its stocky shape and short legs, it races up to 30 km/h over short distances. Though they look kind of cute with their roundish shape, one should not underestimate these animals by any means. Hippos are dreaded for their severely hostile territorial behaviour. Females are particularly defensive if anyone gets between them and their young. | 
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