Animal Eyes

Ketchup didn’t originally contain tomatoes but was rather a concoction made of fish or mushrooms. Once tomato ketchup was invented, a physician named John Cooke Bennet had the brilliant idea to press the sauce into pills and sell them as a cure for diarrhea, indigestion and rheumatism. The ketchup medicine craze didn’t last long.

A dog’s sense of smell is simply amazing: Our canine friends can smell a teaspoon of sugar dissolved in two Olympic swimming pools. That’s thanks to the 300 million olfactory receptors in their noses – humans have a measly six million...

If you and your love look into each other’s eyes for three minutes, your heartrates will synchronise! And if you’re in pain, just look at a picture of your significant other – it’s been shown to decrease the pain’s intensity!