In 2012, scientists discovered that a primary reason penguins can swim so fast is that they have a special “bubble boost.” When penguins fluff their feathers, they release bubbles that reduce the density of the water around them. The bubbles act as lubrication that...
Penguins do not have teeth. Instead, they use their beak to grab and hold wiggling prey. They have spines on the roof of their beak to help them get a good grip. Penguins even have spines on their tongues. Fact source...
Penguins swallow pebbles and stones as well as their food. Scientists believe that the stones may help grind up and digest their food. The stones may also add enough extra weight to help penguins dive deeper. Fact source...
Contrary to popular opinion, humans did not come from monkeys. Rather, humans and monkeys share a common ancestor 25-30 million years ago and then evolved from this animal in various different ways. Fact source...