Selective mutism is a real thing. It's an involuntary anxious response, meaning most of the times the person WANTS to speak but cant! In relaxed situations they can even be super chatty!
Black cats are black because of high levels of eumelanin pigment, and the gene that produces it is dominant. A kitten only needs one black gene from a parent to have a black coat.
Your gut is sometimes called the “second brain”. The gut has 100–500 million neurons, forming the enteric nervous system that controls digestion independently of the brain.
Those teasing conversation hearts raining down my bare skin started as medicinal lozenges in 1847. Boston pharmacist Oliver Chase invented America's first candy-making machine to cut them efficiently, before his brother Daniel added messages in 1866, tu
A lion’s roar can be heard up to 5 miles (8 km) away
Their vocal folds are specially structured to create powerful, low-frequency roars with minimal lung pressure.