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

2) Cricket, originating in England, is a popular sport played in many countries and is known for its distinctive rules and terminology.

3) The world's oldest living plant is believed to be a clonal shrub called "Old Tjikko" in Sweden, estimated to be over 9,500 years old.

4) The Mariana Trench in the western Pacific Ocean is the deepest part of the world's oceans, reaching a depth of approximately 36,070 feet (10,994 meters).