Scary, surprising ways that animals stalk their prey

These snakes have “heat-sensing pits on their faces, to detect warm-blooded prey with the sensitivity of detection in the thousandths of a degree Celsius,” says Robert Espinoza, a biologist at California State University, Northridge.

https://www.nationalgeographic.com/animals/2018/10/animals-hunting-behavior-stalking-birds-reptiles-alligators-spider/?user.testname=photogallery:3

National Geographic