1) The blue whale is the largest animal to have ever existed, with an average length of about 82 feet (25 meters).

2) The corpse flower, or titan arum, is known for its unpleasant smell, often compared to that of rotting flesh.

3) The naming of cyclones varies depending on the region. For example, cyclones in the Atlantic and eastern Pacific Ocean are named using a predetermined list of names.

4) The concept of self-driving cars, or autonomous vehicles, is being actively developed by companies such as Tesla, Google (Waymo), and Uber.