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TIL Dolphins call each other by ‘name’ using a unique whistle to identify each other. They only respond to their own names, by sounding a distinct whistle back. Researchers believe dolphins are acting like humans: when they hear their name, they answer.

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bXJj TIL seat belts don’t make school buses safer, and may not be worth the added cost, according to NHTSA
AN7l4 TIL Matthew perry once beat up the current Canadian prime ministrer in a school fight.
m58x TIL Alec Guinness (Obi-Wan) received 2.25% of the total profits Star Wars Episode IV: A New Hope while Harrison Ford (Han Solo) only made .67% the profits and Mark Hamill (Luke) and Carrie Fisher (Leia) only took home .25% of profits.
p8Ooe TIL : There are problems which can't be solved even if we have plenty of resources. These are called as undecidable problems. For such a problem, a computer might give a wrong answer or it will run forever without a solution.
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