Simplify the following text for a Grade 14 native English-speaking person.
Original: The Brown huntsman spider , Heteropoda venatoria , is found in many tropical and subtropical parts of the world , including Asia , RÃ union Island , the Caribbean islands , the Southeastern US , and ( especially ) Australia .
Simplified: The brown huntsman spider , Heteropoda venatoria , is found in many tropical and subtropical parts of the world , including Asia , some Mascarene and Caribbean islands , the Southeastern US , and ( especially ) Australia .