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What Made the Y Chromosome So Tiny?

The Y chromosome, a chunk of genetic code that is unique to male mammals, isn’t just physically smaller than the X. It also contains far fewer genes. The X has more than 1000 genes, while the Y has fewer than 200 —and most of them don’t even work. Why do men have this odd, stunted chromosome in their genomes? » 5/07/15 7:40pm 5/07/15 7:40pm

Blood Of 2 Million Babies Found In Indiana Warehouse

For over 20 years, the state of Indiana hoarded the blood of newborns without their parents' consent. If your child was born in Indiana after 1991, chances are his or her blood sample is one of an estimated 2.5-million specimens currently stored in a warehouse, the location of which state officials have not disclosed. » 7/19/14 2:00pm 7/19/14 2:00pm

I Am So Tempted to Say that These European Crows Are Racists

In Europe, there are two groups of crows who are almost identical — except for for thing. Carrion crows are all black, while hooded crows have patches of gray. Each group prefers to mate with their own color. It sounds like what humans would call racism, but instead it's a lesson in the limits of anthropomorphism. » 6/20/14 5:35pm 6/20/14 5:35pm