A Halloween Flashback “This Week in Science”

How about a Halloween flashback “This Week in Science”? A study found bats glow green after they’re exposed to ultraviolet light, and scientists aren’t sure exactly why? And keeping with our Halloween theme, we move to spiders. A study out last Wednesday, found some spiders build complex “decorations” in their webs to help them sense vibrations and find prey. So basically, Charlotte’s Web turns out to be a hunting story?