Thursday 8 December 2016

54 oxygen-starved stingrays die

Published 12/07/2015 | 21:57

The stingrays were in a shallow pool that allows visitors to touch and feed them
The stingrays were in a shallow pool that allows visitors to touch and feed them

All 54 stingrays in a popular exhibit at a suburban Chicago zoo died because the oxygen levels in their tank dropped too low.

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The Chicago Zoological Society said today that the four southern stingrays and 50 cow-nose rays in the Brookfield Zoo exhibit were in a shallow pool that allows visitors to touch and feed the creatures. Most died on Friday afternoon.

Bill Zeigler, a senior vice president at the society, said zoo staff worked hard to try to save the rays and were devastated by their deaths.

The society says the staff are working to get the tank's oxygen levels back to normal and that the seasonal exhibit will remain closed for the rest of the summer.

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