Sperm Whales Live in Huge, Distinct Clans Spread Across The Ocean : ScienceAlert
A leading expert on sperm whales has gathered the evidence and shown that the biggest-brained animals on Earth form large and complex clans with unique dialects and behaviors.Using some rough calculations based on sperm whale populations, Hal Whitehead from Dalhousie University in Canada estimates that many of these clans number in the tens of thousands.Seven clans alone live in the North Pacific, according to recent underwater acoustic data, and yet despite their shared genes, it's extremely rare for these groups to…