Greenland right whales have the longest of these thin plates of any whale; they may reach 13 feet
Right whales have rotund bodies 
with arching rostrums, V-shaped blowholes... [DOC] [TLE] World Book Student | Print - World Book Online [PAR] For example, beluga whales usually reach only 13 to 16 feet (4 to 5 meters) long 
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