1) DNA, the building block of life, can store incredible amounts of data. It is estimated that one gram of DNA could potentially store about 215 petabytes of data.

2) Orchids are one of the largest families of flowering plants, with over 25,000 species.

3) The concept of sovereignty refers to the supreme authority and power of a state to govern itself, make decisions, and control its own territory without interference from external forces.

4) The Eiffel Tower can be 15 cm taller during the summer due to thermal expansion.