If you have a sweet tooth, you’ll be familiar with the burst of energy known as a sugar rush. But what if your survival depended on it? Would you love it as much? Animals get the nutrients they need from different sources. If you have a sweet tooth, you’ll be familiar with the burst of energy known as a sugar rush. But what if your survival depended on it? Would you love it as much? Animals get the nutrients they need from different sources. Plants & Animals Ecology Phys.org – latest science and technology news stories