Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.

Renewables supplied 71% of Portugal’s electricity in 2024, including 10% from solar, as production hit a record 36.7 TWh, according to grid operator Redes Energéticas Nacionais (REN).

Beauty was extremely important in ancient Greece and not just for women but for men, as well. As admirers of beauty, ancient Greeks placed great emphasis on healthy skin, and, naturally, they ...