Since 2005, the year-end population has ranged between 105 and 126 at Shackleford Banks, which is 3 miles offshore and can only be reached by private boat or passenger ferry.

Two four-wheelers and a pickup truck in hot pursuit were driving the mares to holding pens on the Vestring Ranch, about 40 miles south of Emporia. A portion of a herd of 290 wild mares heads back ...

The park has been experimenting on this herd with GonaCon since 2009. Hand injections given to mares in 2009 and in 2013 have resulted in 19 of those 24 mares not returning to fertility as of the ...