The largest toothed animal in the world, it was named for the milky-white substance found in its head
The whale was 
named after the milky-white substance spermaceti found in its head and 
originally... [DOC] [TLE] Sperm whale - Wikipedia [PAR] The sperm whale (Physeter macrocephalus), or cachalot, is the largest of the 
toothed whales ...