More than 30 years ago, killer whales were spotted wearing a single dead salmon as a hat. Now, one was spotted doing the same thing in the same place again. Is the trend back? In ThePrint #̦PureScience, Sandhya Ramesh explains. Sources and further reading: - The Law of the Tongue: https://www.thevintagenews.com/2018/08/12/old-tom-the-killer-whale/ Subscribe to the Pure Science Telegram Channel https://t.me/PureScienceWithSandhyaRamesh