Deepest points of the world's oceans revealed

Deepest points of the world's oceans revealed

The DEEPEST points in Earth’s five oceans revealed: Scientists travel 47,000 miles and complete 39 dives to create more accurate maps – confirming the 6.8-mile-deep Mariana Trench still descends the furthest Five Deeps Expedition (FDE) reveals precise data for the five ocean’s…

Can You Have More Than 150 Friends?

Can You Have More Than 150 Friends?

LONDON — Just how many friends can one person have? In a 1993 study, Robin Dunbar, a British anthropologist, theorized that humans could have no more than about 150 meaningful relationships, a measure that became known as Dunbar’s number. But researchers at…