*By The Canadian Press*
VICTORIA — A study released today says mother-daughter conflicts over competition and co-operation are helping explain why killer whales go through menopause.
Killer whales are one of only three species, including humans, who go through menopause, often living for decades after giving birth to...
Menopause for killer whales involves mother-daughter conflict: study
Thursday, 12 January 2017 (5 days ago)
BBC World News - Affiliate - ▶ 01:29
Geo Beats - ▶ 01:15
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