t ▁between ▁ 1 0 ° ▁and ▁ 3 0 ° N ▁latitude ▁stretch ing ▁from ▁Europe ▁and ▁North ▁Africa ▁up ▁to ▁Malays ia . ▁They ▁are ▁also ▁found ▁in ▁the ▁M alt ese ▁islands , ▁situated ▁in ▁the ▁middle ▁of ▁the ▁Mediter rane an ▁sea . ▁Although ▁w ides p read ▁and ▁not ▁threatened ▁overall , ▁they ▁are ▁generally ▁un common ▁and ▁are ▁end anger ed ▁in ▁some ▁countries . ▁ ▁Description ▁The ▁E tr us can ▁sh rew ▁has ▁a ▁sl ender ▁( not ▁trunc ated ) ▁body , ▁with ▁a ▁length ▁between ▁ ▁ex cluding ▁the ▁tail , ▁which ▁adds ▁another ▁. ▁The ▁body ▁mass ▁var ies ▁between ▁ ▁and ▁ ▁and ▁is ▁usually ▁about ▁. ▁In ▁comparison , ▁the ▁related ▁greater ▁white - to oth ed ▁sh rew ▁can ▁be ▁twice ▁as ▁long ▁and ▁we igh s ▁four ▁to ▁five ▁times ▁more . ▁The ▁head ▁is ▁relatively ▁large , ▁with ▁a ▁long , ▁mobile ▁prob os cis , ▁and ▁the ▁h ind ▁lim bs ▁are ▁relatively ▁small . ▁The ▁ears ▁are ▁relatively ▁large ▁and ▁prot uber ant . ▁The ▁E tr us can ▁sh rew ▁has ▁a ▁very ▁fast ▁heart ▁be ating ▁rate , ▁up ▁to ▁ 1 5 1 1 ▁be ats / min ▁( 2 5 ▁be ats / s ) ▁and ▁a ▁relatively ▁large ▁heart ▁mus cle ▁mass , ▁ 1 . 2 % ▁of ▁body ▁weight . ▁The ▁fur ▁color ▁on ▁the ▁back ▁and ▁sides ▁is ▁pale ▁brown , ▁but ▁is ▁light ▁gray ▁on ▁the