During the long evolutionary journey, the brain capacity and the complexity of the nervous system of primates have been increasing, and correspondingly, their intelligence has become higher and higher as a result
The world's largest frogs are carnivores, but when these giant frogs were tadpoles, they were super picky eaters and only ate a water plant that was a specialty of local waters
Most of the plants that we think are delicious have actually been artificially selected for hundreds or even thousands of years