Sharks are 400 million years old.
Humans kill an estimated 100 million sharks a year.
This World Wildlife Fund ad perfectly shows what’s really horrifying about sharks.
- 200 million women and girls have undergone genital mutilation, UNICEF data says. But the practice's prevalence is down.
- Hillary Clinton and Bernie Sanders debated head-to-head over who was a true "progressive." 🇺🇸
- Do you know what happened in the news this week? Time to take our quiz.