In northers European cultures, swords were believed to have their own 'soul', so when the warrior died, the sword had to be destroyed and buried so the spirit could accompany the warrior into the afterlife
Different parts of the nail matrix contribute differently to nail thickness
Studies indicate about 79 % of the thickness of the nail plate comes from the nail matrix, while the remaining 21 % is contributed by the nail bed — overturning the notion
Sharks don't have bones. They are a special type of fish known as "elasmobranchs", which translates into fish made of cartilaginous tissues. Even though sharks don't have bones, they still can fossilize. As most sharks age, they deposit calcium salts
Zebras are intelligent and sentient animals. Zebras stand between 1.10 and 1.50 meters tall at the shoulder and can weigh up to 450kg. Despite their size, they are fast runners, reaching speeds of up to 65 km/h to escape predators.
