Are you one of those people who believe that science has already discovered everything there is to discover or one of those who still question everything?
But it’s also true that there remain many unsolved mysteries that are yet to be solved. So here we list 11 of those unsolved mysteries which hopefully, will trigger further research. Check them out below!
1# How do cats purr?
Cats purr when they feel happy, but no one knows how. When they purr, you don’t even hear their heart beating!
Scientists say cats make the vibrating sound with their vocal cords. Its frequency accelerates healing and reduces pain, which is why cats purr when they are stressed or hurt.
2# What is the “space roar”?
While studying young stars in 2006, scientists suddenly heard mysterious roars. Although sound can’t travel through space, radio waves can. But where do they come from? The researchers only know that the waves didn’t belong to stars or known cosmic phenomena.
3# Where did some creatures come from?
Many species don’t have any ancestors. No one knows exactly when amphibians evolved from fish because the first land animals had well-developed limbs and heads.
It’s also said that dinosaurs became extinct after a natural cataclysm 65 million years ago. At the same time, species of mammals appeared from nowhere.