NPR's Juana Summers talks with Regina Barber and Emily Kwong of Short Wave about "scuba-diving" lizards, a trick to turn a mouse's skin transparent and whether finger counting helps kids' math skills.
In Lebanon, hospitals are still dealing with a crush of patients maimed by exploding pagers and walkie-talkies this week. Hezbollah leader Hassan Nasrallah has vowed retaliation.