n osed ▁fruit ▁b ats ▁prefer ▁to ▁ro ost ▁in ▁small ▁groups ▁in ▁trees , ▁under ▁leaves , ▁and ▁in ▁c aves . ▁Young ▁males ▁may ▁ro ost ▁alone . ▁It ▁is ▁common ▁for ▁one ▁male ▁to ▁ro ost ▁with ▁up ▁to ▁four ▁females . ▁Fem ales ▁may ▁gather ▁in ▁groups ▁of ▁up ▁to ▁ 2 0 . ▁To ▁feed , ▁the ▁b ats ▁b ite ▁off ▁the ▁center ▁part ▁of ▁pal m ▁fruit ▁clusters , ▁leaving ▁a ▁h ollow ▁for ▁h anging , ▁which ▁is ▁also ▁the ▁method ▁they ▁use ▁to ▁construct ▁a ▁shelter . ▁M ales ▁may ▁spend ▁more ▁than ▁two ▁months ▁che wing ▁the ▁ve ins ▁of ▁leaves ▁and ▁pal m ▁fr onds ▁until ▁they ▁fall ▁to ▁form ▁a ▁shelter . ▁Ind ividual s ▁use ▁tact ile , ▁visual , ▁and ▁ac oust ic ▁stim uli ▁to ▁communicate . ▁They ▁for age ▁with ▁their ▁ac ute ▁sense ▁of ▁sm ell ▁and ▁navigate ▁with ▁their ▁keen ▁vision . ▁ ▁Distribution ▁and ▁habitat ▁▁ ▁The ▁less er ▁short - n osed ▁fruit ▁bat ▁type ▁spec im ens ▁were ▁collected ▁from ▁the ▁De wei ▁River ▁in ▁Bor neo ▁on ▁September ▁ 1 2 , ▁ 1 8 3 6 , ▁and ▁at ▁N aga ▁C ave ▁near ▁J amm ut ▁on ▁the ▁Te we h ▁River , ▁Bor neo . ▁ ▁They ▁are ▁widely ▁distributed ▁in ▁Sri ▁L anka , ▁south west ▁and ▁n ortheast ▁India , ▁Bang l adesh , ▁And aman ▁and ▁Nic obar ▁Islands , ▁southern ▁China , ▁southern ▁Bur