Zoo sterilizes deer to check its population

Spiralling population of spotted deer in Patna's Sanjay Gandhi Biological Park has prompted its keepers to sterilise the antelopes to control its growth. Known as Cheetal, spotted deer in the zoo have grown at an alarming rate in the past few years making it unmanageable for the authorities. The zoo now has 64 deer of which 21 are males and 43 females.