$A$ tiger will think twice before attacking this animal,even though it is alone. Which is it?

Antilope cervicapra (Black Buck) is categorized as:

The number of vertebrate species facing extinction is about

The 'Central Public Health Engineering Research Institute' $(CPHERI)$,now known as the National Environmental Engineering Research Institute $(NEERI)$,is situated at:

Decrease in species diversity in tropical countries is mainly due to

Bandipur in Karnataka state is the site of