Version 2.0 of the study will add bunny scent to the stuffed rabbits if motion and heat aren’t enough to fool the pythons in Florida.

When you do, game over. Google, as part of its array of Google Doodle games, now has a version of Snake in which you have a daily challenge. Sometimes, you're in a very small space with obstacles.

The footage captured on a South African game reserve shows the snake swallowing the dead impala whole.