Lasers turn mice into lethal hunters

Copyright: Jean-Louis Klein & Marie-Luce Hubert/Science Source

Copyright: Jean-Louis Klein & Marie-Luce Hubert/Science Source

One moment, a mouse nonchalantly shares a cage with a cricket; the next, the rodent leaps on the insect and rips its head off—all because a scientist flipped a switch. For the first time, researchers have hacked into the part of the brain that makes animals hunt, using lasers to target specific neurons. What’s more, they’ve found this hunting center in a surprising place: the region of the brain responsible for fear. | Read more ...

Rachael Lallensack