This morning at Bwog, we read about 20,000 ghosts discovered from half a million years ago, and realizes it’s still less than the number of students enrolled at Columbia.

Happening in the World: After analyzing genomes from West African populations, researches found that up to a fifth of their DNA appeared to have come from an unknown group of archaic humans, suggesting that a “ghost population” of so-far-unknown ancestors lived in Africa about half a million years ago. (The Guardian)

Happening in the U.S.: Three female high school runners filed a federal lawsuit seeking to block transgender athletes in Connecticut from participating in girls sports, arguing that the biological unfairness impedes their chances of winning track titles and scholarship opportunities. The American Civil Liberties Union said it will represent the two transgender sprinters at the center of the lawsuit and defend the Connecticut policy in court. (ABC)

Happening in NY: Many commuters found themselves jammed together in Penn Station during rush hour, after a routine of delays and cancellations caused by overhead wire issues. For New Jersey Transit riders, these delays have become common in recent years, and a commissioner on the board of public utilities acknowledged the ongoing failures as a possible risk toward the economic future of the state. (CBS)

Happening on Campus: Catch an exclusive screening of Antonio and Piti, an exploration of love between an indigenous Peruvian-born man and the daughter of a white settler, at 6:30 P.M.  with the Lenfest Center event Water, Sound, and Indigenous Film.