Debra Solomon could think of no other gift that would delight her mom more than a reunion with her favorite kindergarten pupil, decades later.

Scientists say an experimental antibody drug appears to prevent and reverse type 1 diabetes in mice—and often lengthen their lives.

The device replications how leeches attach to their hosts and suck blood by the creation of negative pressure—in other words, suction.

The last time an egg was laid in Belgium by this bird, the Mayans were being conquered, and the Portuguese first landed on India.