The chainsaw was originally invented to assist in childbirth - specifically, to cut through the pelvic bone during obstructed labour.

At the Poison Garden of Alnwick Castle in England, many of the plants are so deadly they're grown in cages — even touching or smelling some of them can kill you.

While they might look the same, Jenga blocks have subtle differences in dimensions to make their construction less stable. Each brick is a different size and weight, so no two games are alike.

A study by the University of Glasgow found that, like humans, dogs have individual music preferences — but they generally prefer reggae and soft rock over other genres.

Studies show that among young, elite chess players, a higher IQ offers no advantage and may even be a slight disadvantage. Success in chess depends more on adaptability, pattern recognition, and creativity than on raw cognitive ability.

​Studies suggest that habitual napping benefits health, with the optimal nap time between 2 p.m. and 4 p.m. The ideal nap duration is typically 20 to 30 minutes. ​

Snakes can predict earthquakes up to 75 miles away, five days in advance,. This is likely in response to subtle vibrations or changes in the earth's electromagnetic field.