1) The word "pizza" contains two vowels: I and A.

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

3) The development of voice recognition technology has led to the widespread use of virtual assistants such as Siri, Alexa, and Google Assistant.

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