TOPEKA, Kan. (AP) -

The Topeka Zoo says it is expecting some new tiger cubs but it's not sure how many.
    
Zoo officials announced Tuesday that its Sumatran tiger, Jingga, is expecting. Zoo director Brendan Wiley says an ultrasound two weeks ago showed two, possibly three, cubs. The birth is expected sometime in May. The cubs' father is Rojo.
    
Wiley says the births would be important because Sumatran tigers are critically endangered, with only about 500 left in the wild.
    
The Topeka Capital-Journal reports ((http://bit.ly/1hwmPoc ) when the cubs are born, they won't go on public display for about 90 days.
    
Wiley says the cubs will stay with their parents for at least the first two years, then be paired with other tigers based on their genetic match.
    
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Information from: The Topeka (Kan.) Capital-Journal, http://www.cjonline.com

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